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.