Doesn't seem reasonable at all?! Youtube's response is, at the most charitable, being dishonest in this post. They're directly contradicting the video evidence and screenshots. They blatantly directly LIE that the accounts have been reinstated when many have not. It's about as unreasonable as it gets, a corporate communication non-answer would have been more reasonable than straight up lying.
Also, if you're running a service that's grown too large for you to properly manage (which clearly is happening, even to Google), then if you fuck it up, that's still on you! There's no fundamental right to build a really large thing, if you can't manage it properly. So they thought they could get around this limitation with AI and robots, but that doesn't work well at all. That doesn't mean you can go "oh well we're trying, but there's just too many videos being posted!" yeah well DUH that's because you keep on growing while not having the resources to keep up with the videos being posted.
It's like I built a skyscraper but people keep getting hurt in it cause bits are falling off and the floors aren't strong enough. I can't just go: yeah I built this huge skyscraper and I really TRIED reinforcing the floors with duct tape but it just doesn't work well enough. There's really nothing I can do, there's just too many floors, we're doing the best we can and it's unavoidable that some people will (literally) fall through he cracks.
That's not reasonable, I probably just should give up on the skyscraper or sell it to someone who can take responsibility for it.