I don’t know about this MIM hate
I have one of the first runs of the Classic 60s Jazz bass and I found it to be a fine bass. The only thing about it was it’s not as light as the Road Worn versions or had the Nitro finish that came later. Even though the weight was a bit heavier it did remind me of a late 60s Jazz bass that I had access to back in the 70s that weighed about the same.
Anyway that bass and the few MIM I have handled in the wild were fine. I do understand that these things can be hit or miss at times so I don’t discount others running into problems. But to imply all MIM basses are bad is short sighted, IMO.