> But at the same time, there are people who have so heavily invested into the YouTube ecosystem with certain expectations for a very long time, and pretty much have their entire business on there, so they can't very easily take their business elsewhere if they're unhappy with the change.
A key part of running a business is risk management & mitigation. YouTube has very obviously been an ad-supported video platform for at least a decade. Hoping nothing changes about your little ad-free corner of that platform is not a sound business plan.
It's shitty that Google didn't give a heads up, but anyone whose business is riding on this should definitely have been expecting something like this and had a backup plan. Literally free content hosting is obviously not a thing that will exist for very long. Enjoy it while it lasts, but you know also have a Vimeo account ready to go as well or something like that.