most people in gambling companies aren’t interested in compliance that much. It’s very much a “do it then say sorry and fix it in post” attitude from the leadership

I’ve worked in gambling (they like to call themselves “gaming”) as well and this isn’t true. Before you can enter any market the local regulator has to approve you. Also for any changes you make after you are in. Exception are markets with lax regulators, which is often the case for online casinos.