You have a point about this. The problem is, you are the one who voluntarily use their exchange with such terms. If they will scam you, again they will not give you 90% of your money. You have the choice to do KYC and wait but you are in urgent state because of the crypto price dipping which is not the exchange problem at all.
The thing is, there is such a thing as scamming through terms of service it is a legit transaction but you feel that you have been scammed and it really looks that way, another lesson in not reading the TOS, and OP can't deny this.
Three lessons we learned here, first always read the TOS and their FAQ however long and boresome it's your guide if you want to push through or look elsewhere for alternatives.
Two never in a hurry to trade your coin without understanding first the policy or the terms of the exchange.
Three, always prepare when you need to trade your coin in a hurry you can do this by picking at least three exchanges and you are already familiar with their policy and terms.
I guess you are guilty of all these three, so you can't just blame anybody you did it unprepared.
Now we are aware of this exchange and how they do their business.