Physicists are probing the heck out of every theory. However, QM has proven to be _extremely_ reliable, even some 'Gedankenexperimente' by Einstein trying to make it look wrong turned out to be true ('geisterhafte Spukwirkung').
>> There is a lot to be explored there but academia tells people to avoid it.
I don't think so. I mean just look at the Large Hadron Collider (LHC) which probes fundamental forces which are... guess what... based on quantum field theory which itself is based on quantum mechanics.