Everything has benefits and drawbacks of course. It's true that you can minimize the impact of one service pulling this stunt.

However, I don't agree with "remember all the different places you need to download content from". Google does this with Takeout, so I can have 1 backup of most of my things. When using different services, I need to have various backups.

Reason is: I don't depend on services giving me 30 days. I assume they can block access on the spot.