They cannot handle the pressure this is a big decision that will have an impact on the share of the market among streaming platforms, gambling streamers will have Youtube for now, but it's only gambling streaming that is banned, they overlooked the contribution of streamers and their followers on their platform and instead opted to take drastic action on the complaints I hope streamers will comply and behave on other streaming platforms, they have revenues to protect and they have followers to feed with their live streams.
But this is what they must do if they will retain their reputation because I believe that their site had been abused by streamers that supports scam gambling site.though this is not only happening in Gambling business instead in all ways that to cheat people.
It's not going to stop gamblers and it's not going to stop streamers. Pretty pointless if you ask me.
I don't see it's about banning gambling streamers but it about going against crypto casinos. Obviously platform like Google and other giants (I guess Twitch is only a small one so far) don't want crypto to have establishment of crypto over their government controlled fiat currency. Most of the time it's the pressure from government agencies and these companies are just saving their business so that they can survive.
But as @coolcoinz said, that will not stop gamblers and streamers from creating content about gambling because many other sources can still accommodate it.
It is like a war between the good and the evil because the government wants to protect their people from the danger of playing gambling
But whether they will play gambling will depend on how they can be responsible for what they do so they do not get a bad impact from gambling.