Probably more related to their banking partners setting the boundaries and directly decide what can and can't be done.

I expect things to get worse as banks themselves will be subjected to stricter regulations in the future, so everything that happens in that field, will directly affect the exchanges as well. It's impossible for an exchange to reject whatever the banks demand from them, otherwise they have no bank accounts. Good luck finding a long term banking partner as exchange. Launching a space shuttle successfully is easier.

I have to admit that for such a respected exchange Kraken's headlines haven't been too positive in the last couple of months. Hope they don't fuck up because they are the largest BTC/EUR exchange.