Binance and even the other exchanges will act neutral and that they are supposed to do, otherwise they are getting involved in the war which is not.
Binance made the right decision, might blocking their account can be possible if that is used illegally if found but as long it was not, there is no such ground of freezing their account. That I hope the other will take responsibility as well as people from Russia are still good users, though not all of them. It wasn't their take and Binance can't afford to do it coz they know a lot of people from Russia will get affected.

But even if it happens, not all of them do KYC, they can't still block them all.