This situation is indeed not good for bitvest active players although I do believe that bitvest has their own policy about when to refill the hotwallet.
Afaik bitvest has low number of staffs, probably lightlord is the only one who handle this job so once lightlord is having other things to do IRL then it will take longer time to refill the hotwallet.
I'm not really sure if they have a system to notify owner whenever the hotwallet is getting close to empty.
It will be good system so the situation of empty hotwallet can be minimized.
That's fine. I would just keep bigger hot wallets to prevent this from happening too much. There's risk in a hot wallet being stolen but also in people losing interest in gambling or investing if they are annoyed about not being to withdraw as fast as they expect.
However think of it this way, there will never be a big hack that would steal everyone's money, isn't that cover for the bad and then some? I would rather have to wait for my withdraw to come to me a bit late compared to a possibility that all of my money could be gone one day. That is why I feel like it is rather preferable to have it this way than the other way around.
I don't know because I never had any troubles getting money from here like people say so maybe I just have to face with the situation first to make a better decision but it sounds better as it is.