The provably fair engine works fine, but the fact that they use a new server seed for each bet make the game kind of rigged. The right way to work it is to have a server secret seed and show the hash to the user, and when the user request a new server seed we should be able to see the past one to verify our rolls.
I'm not that familiar with the technicalities of these server seeds or something similar kind of stuff but you're saying it should be automatically be changed on the player's side everytime for the next bet/s? If it's complex then for sure the alternative to do right now is just to change it on each bet.
Moreover, if used by bots you're at risk for being banned by most casino operators, it's prohibited.