Agree with OP, pro player will like it because pro sport bettor will search the site that can provide higher odds/higher stake but why you choose the site that not need registration for bet?? did you not think the disadvantage by using directbet platform?? for example when the bet canceled, the gambler will incur losses on transaction fee.
If it is a lot of money, of course, own control, more secure!
We allocate betting funds on a pro rata basis, If the bookie stole one stake, then they only stole one, your other's cash was secure.
bet canceled, this case, small probability event.