It was already reported a deadline to get an answer. So pressure is completely useless (also we are talking about a site with a very good reputation!)... and I don't think they need to scam 1.3 eth
Wrong. Pressure did help in this case and it's obvious why they wouldn't admit it. Blackjack.fun is a reputed site for sure, but reputation doesn't amount to much if they cannot convince their customers properly leading to these threads.
Another example is Stake's recent accusation which still hasn't been solved. If reputation was everything, sites like FTX etc would have never collapsed.
Reputation can only remain relevant for as long as it is maintained, one thing that is constant in life is change, reputation is not like a medal that remains with you once earn, one can earn a good reputation, and still end up losing it if he or she does not keep to the deeds that earned him or her the reputation, a good example is FTX exchange that you mentioned, there are still lots of other platforms like that, 1xbit I believe had a good reputation when they started, but along the line, they deviated from what earned them the good reputation and started doing things differently, they lost the good reputation.