It is both a difficult decision to take, and a very important one too. Actually, freezing funds allows neither helping or diminishing the market. Nobody can make liquid steem to get things quickly better by creating volume if an exchange sees steem as too diminished.
I am not an expert, but I think it's why we can neither follow bear of bull markets and why the price is "rather stable" at 0.14-0.12 cents.
At least I'm guessing it will be so until someone finds a better solution.