i don't think 10 BTC is too big, especially for a reputable gambling platform all the way from 2014. Of course investing in such is risk but with risk comes reward if all things go well.
I disagree. BetBTC shut their business due to constant losses which is pretty obvious which is why I doubt any investor would think about investing a huge amount like 10 BTC in a failed business in my opinion.
Initially, I thought he meant that the proposed minimum withdrawal is 10 BTC now that the deadline has passed.

10 BTC is roughly close to half a million bucks which is why I have no idea why you thought that such a huge figure would be set as the minimum withdrawal amount.