Dropping the anchors would hardly have had any effect on the speed of that large a ship at that speed. It would probably have taken dragging the anchors for miles to bring it to a stop. Anchors are not for stopping ships/boats, they are for place holding when still.

Once while fishing with an uncle the anchor on our 16' John Boat running at slow with an electric trolling motor fell in shallow water, snagged in the mud and spun the boat around so we were going backward from the momentum even with the motor still going in forward. That little John Boat with two adult size men and load of fishing gear kept going until we were had gone 3-4 boat lengths and finally stopped when we came up against a 4' thick tree trunk with the motor hung up in flooded bushes several feet from the tree and dragging the bushes.

Maybe they are also overloaded. Shippers always want to move the most possible.

Railroads did the same, trains got to be so long many areas passed laws limiting how long they could block road crossings. They had gotten so long and heavy they had to start slowing many miles out from the rail yards, and the distance to make an "emergency stop" came to be measured in miles
It didn't matter if an engineer saw a stalled car on the tracks if from the time he locked up the brakes to the time he stopped his locomotive was a mile or 2 (maybe more) past the crossing.

Reports say the ship lost power (no steering etc.) and radioed the port people in time for the police to stop cars from going onto the bridge, so only a few were on it. A work crew of 8 was on the bridge and so far they have found two of them, both alive but one with bad injuries and rushed to the hospital. Sonar does show some cars in the 50' deep water.

In the pictures that ship had a max load and in my opinion the containers were stacked too high. A huge "sail" area for wind to push on. Even with full power, a ship loaded like that would be hard to control in a cross wind. Just because you can doesn't mean you should.

I have pondered this issue myself. I have more pictures than I need and there is no wall space for any more. I don't sell them so I get no income from this activity. When I travel (which is not so often any more) I take a lot of pictures and make videos from them; I watch the videos occasionally but now have seen all of the many times. So why am I still taking pictures?

I think of it as similar to people who do catch-and-release fishing. It's a hobby, something I enjoy doing. With digital photography you are not even polluting significantly, it gets you outside for shooting and gives you something interesting to do editing; it's harmless and fun. That's why I keep doing it.