Probably. They have these rules because they are obliged, not because they think they are effective.
I'm sure they know very well this can happen and don't care because nobody can accuse them of not doing the "proper" thing of enforcing the rules.
At least, by now people are not US citizen don't have to do KYC.
The Crypto Bridge said that in the future, all users might have to do KYC.
That depends on legal authorities future management strategies.