btw, if I’m not mistaken, the last time I visited their casino I remember seeing that they had an original game. But I just checked and it seems they have removed it! Why would they do that?
Probably because of what you already mentioned in your post. There is a possibility that those games come with bugs and glitches. Since they bought the script, and I assume they installed it themselves without hiring a professional coder, they are unable to fix those bugs and glitches, which is why they had to remove those games. I am not sure; I am just telling what I think. But there might be other reasons.
You can start with a ready-made script to save some money. But you need developers who can fix all the bugs and ensure your website runs smoothly. There is a possibility the casino would collaps within a few months if they do not have a experienced developer.