I upvoted because it's an actual concern, but don't agree with your point. Of course non-profit vendors should be excluded from such regulations, providing a best-effort solution.

For other vendors, that would actually be a feature. It would incentivize hardware manufacturers to stop bundling bad/broken Androids with their hardware, open the bootloader and partner with serious free-software organizations who won't break your system or backdoor it. If you really want to roll out broken software for your customers and not give them a choice, pay up.