Obviously as an investor you understand there are risks but out of all the exchanges out there, i can think of 2-3 that I would personally trust with my money and in my case we are only talking about thousands, imagine a big player with millions using etherdelta or some other retarded exchange, no way that will ever happen. Even big exchanges like bittrex, not long ago, they fucked up and made everyone wait months and months to get your account enabled or verified. Why would any big player invest in crypto when the risk is so huge, there is literally zero safety, any exchange can run away with your money and you can barely do anything.
first of all bittrex never fucked up anything. they simply scammed a lot of their users, closed their accounts and stole their funds.
secondly this topic is the difference between an investor and a trader. a trader is someone who uses exchanges and needs to trust them, for them the "market" has to be regulated so that they can trust it easier and invest their money.
an investor however is someone who simply buys. for example someone who has been buying (accumulating) bitcoin for years without even using any exchanges! you can always meat face to face with someone and do the trade and it is pretty common to do it this way actually. for them "market" being regulated or not doesn't matter they just need to trust and believe in the technology.