Technically speaking, this is a good move on the part of Bittrex. I mean requiring identification only further legitimizes their business.
If you read up on the numerous recent threads there are more than enough fully verified people in non evil countries who've been locked out of their accounts too.
Normally I'd assume that the whiners were incompetent or dishonest, but there are so many of them coming from so many different channels that it's clear something very abnormal is going on.