Maybe You should ask them ,support is very responsive, what to do if you're unwilling to share documents. I see this as serious step forward. Every exchange has the same procedure,although I must agree with You. This requirements had to be introduced in pre-ICO stage. I believe this has grown beyond their expectations ,and they have to comply to some bigger player.
I am asking, that's why I posted it here.

As I said, I have no problems in general, but I find it highly irritating when they change their terms AFTER the sale. For instance, one of the bullets says "I am not a politically exposed person (PEP)" and unless I don't agree, I won't be able to get to my dashboard with the tokens from the pre-IPO. What if I am in fact a PEP? They didn't make me agree on this or the other points when they happily sold their pre-ICO tokens. Just an example.