There are two differences between the casinos you mentioned and BetABit.Casino.
BetABit.Casino was founded from a purchased script on Codecanyon:
https://codecanyon.net/item/stake-online-casino-gaming-platform-single-page-application/25370124The ones you mentioned are professional casinos.
The point is, the owner of BetABit.Casino may not know how it all looks in practice and is actually still just learning.
The second thing is that till now no one has reported any issue regarding withdrawals or blocking at BetABit.Casino.
I do not know what his intentions are, but as I wrote, I hope they are not bad. Of course, we should always be careful with new casinos.
The only difference I see in professional scammers compared to amateur scammers is the scope and extent of their scam. But there is no difference from the perspective of individual players being scammed. The end result is the same - someone's hard-earned money is lost forever. As can be seen from the 1xbit case, they spend a substantial amount of money on promotion and hire various dubious characters to do the devil's work on their behalf, which results in more unwary people falling for the scam, closing the circle.