I watched the video a few minutes after Jared posted it and I agree with him. I also agree with Canon.
Canon will eventually authorize manufacturer like Sigma and Tamron to make RF mount lenses. What Canon is trying to prevent is the Chinese companies from stealing technology developed by Canon and marketing lower cost knockoffs that don't meet Canon standards, and cut into the income Canon needs to pay for their investment into developing the new lenses.
From what I've read and from my own personal experience, EF lenses with an adapter work really well. In many cases just as well as the newer RF lenses. I have two RF cameras, an R5 and R7. I have 1 RF lens, the R7 kit lens, which I don't use very often. I have a large, or large enough, collection of EF glass, most of which have that sexy crimson band.
I've read that many folks don't like to use an adapter, for what ever reason. I've had ZERO issues with the adapted lenses and the adapter adds very little weight and only half an inch in length.
There is a massive amount of EF glass available at really decent prices. Instead of worrying about the availably of aftermarket knockoffs, get an adapter and use good EF glass.

I believe Canon has goofed on the no third party RF lenses.
I am a retired teacher, with other sources of income but still, not rich, photography is a hobby, so I can't write off lenses as a business expense.

I have an R7 and 3 RF lenses, first was the 18-150 kit lens, then the 100-400 non L and after saving for several months I got the RF 100-500L + the RF 1.4x extender. But for most other lenses, I am using my EF mount lenses with the EF>RF adapter. Since making the switch to Canon (from Sigma RD10 & RD14 with 8 lenses) over ten years ago I now have: 6D, 7DII, 80D, 90D, 5DIV and R7. I have lenses in EF mounts by Canon, Tamron, Samyang and in the past I had a couple of Sigmas.
My bridge cameras have gone from Olympus C2030 to Fuji HS10 to Sony RX10iv. I got my wife a Canon SX50, then a T6s and 4 lenses (bought from someone who purchased them while on a European vacation to replace cameras that were stolen)
And I have an old Panasonic ZS6 I got from Costco when it was still a new model, and it has lived in the pocket of one of my jackets or shirts ever since. When I leave the house, it goes with me, no matter what else I may or may not take.
Somewhere north of $40K* on cameras and lenses + editing capable desktop and laptop computers since the 1990s. The great majority of that to Canon products.
But as I said, I am a retired teacher, my wife is a retired Surgical RN and even though I also have a second pension, VA disability, SS (wife has max SS + a 401k) and an outside source of income I am not going to be spending a lot of money on lenses since I have lenses that cover just about everything and they work. Maybe not as well as the latest and greatest RFs but they work and are already paid for.

The only thing I have a borderline case of GAS for is a mirrorless FF, but I don't need it as my 6D and 5DIV have full frame covered.

People like myself need the less expensive third party lenses to use with our Canon bodies. If we can't afford lenses, then we don't buy the bodies.

*I am a bit scared to dig through my records and add up all the cameras, lenses and photo related gear I have bought since the early 90's. I have a suspicion the off the top of my head number will come out too low.
It is a good thing I don't drink or do drugs or take cruises several times a year like one guy I know in the Senior Center Camera Club. That way I can afford my books (mostly e-books), photo gear, sewing stuff for my wife etc.

Well to begin with, I don't buy the junk brands inferior lenses. Secondly for people like me being able to get RF mount Sigma and Tamron lenses would help me make up my mind about getting another R body, preferably full frame since I have the R7, three RF lenses and an EF>RF converter. The only brands I have ever bought for my Canon's are Canon, Sigma, Tamron and an all manual Samyang/Bower ultra-wide. I seldom do wide angle work, which rules out Canon's own premium lenses for me.
They can sell their premium lenses to pros who can deduct the price, rich hobbyists etc. But a retired teacher like myself can't just buy everything I want. If I can get good quality third party lenses like Sigma, Tamron and Samyang at lower prices than I can see my way to buying another R body.

Forgot one thing. With the EF>RF adapter, a photographer can use all those third part EF lenses that are all over the place, esp online sales.
So no third party lenses, OK, I spent $99 on the basic adapter and can now use all those inexpensive EF lenses if I so choose.