I disbelieve that the Meyers-Briggs is not predictive in some scenarios, though I understand just fine what psychologists say about it and why.

However, I think at least 80% of the antipathy towards the test is because it was not developed by psychologists.

Meyers-Briggs is some aid in understanding one’s self better (just like tarot cards) and that has value even if it cannot be measured — and I’m very much an empirical, science-focused guy if you didn’t know.

But STEM types like to pretend that science is all there is, and in reality that’s just not true. The universe ain’t made of math and most things we just don’t know even if we have revealed by trial and travail some vital rules here and there. But they don’t scale and we can’t handle any composite cases with them (the dark secret of science).

Meyers-Briggs is a mostly-harmless diversion that doesn’t mean much, really. I also think psychologists despise it because it works at least as well as any tools they’ve developed — which is not well at all even for the “scientific” ones.