Quantum physics makes very specific predictions about the probabilities of outcomes. That is not the same as making strict, absolute predictions as with classic

Quantum physics makes very specific predictions about the probabilities of outcomes. That is not the same as making strict, absolute predictions as with classical physics, but it does not leave it open for anyone to come along and whimsically insert whatever theory they want in there -- unless those whimsical theories are also consistent with the experimental results we have that underpin the predictions made by quantum mechanical theory.