I think they have just overloaded the rules, the ref needs a super computer to get the understanding of what rule has been broken.
But because they have allowed gambling, they have no choice but to try and make sure everything is legit.
But they do fail badly by not using the review process for blatant issues, that blind Freddy can see.
It’s really not that hard to introduce the tech for the forward passes. They can even allow a small amount of leeway to take account wind etc. That would solve a lot of these problems.
But you are right to raise the integrity issue overall. It’s too easy for players to deliberately fumble a ball or miss a tackle.
Professional criminals are smart enough to:
A. Deal with people they can trust
B. Make complicated arrangements to dispel suspicion.
C. Pay off people
D. Wash tainted money.
E. Be patient.
Unfortunately, Point A is very difficult.
Serious punters like professional poker players ( card counters), they work off pure maths anyway. There’s no way they are splashing out on league.