Yep sure. As long as it's informed. Anyone can look at the no-hidden variable idea and say "oh it's just so hard to see we haven't found it yet". Sure it might be, anything might be, but to say that you've got to explain away the arguments against it, which isn't so easy.

It's still a bit unsatisfying not knowing what the wave function really is, etc. Why is it we can describe nature using this function that doesn't actually correspond to any known thing in the real world?