This here (even though wrong) is exactly why I do not think a TTB is a good idea on any new vehicle. There just aren't enough people that understand well how it works, and it seems unlikely it will ever be understood as well as a solid axle is. Wrong or right, comments like this don't spread a good image of a suspension.
(And no this is not to say you didn't experience a bad-handling Ford plainjaneFJC, however I would almost guarantee it had much more to do with a poorly engineered lift kit that was on it (which happens to be a large majority of them), and/or it had been messed with and the alignment on it was screwed up (again, not uncommon given how most alignment shop techs seem to have little (if any) training on these suspensions, so they're left guessing on it).
I've written in great lengths on here and on other forums about this subject... A properly-aligned TTB suspension having proper angles on the steering linkage (linkage in phase with the beams) rides & handles better on the street than most any solid axle, and is on par with many OEM A-arm setups too. Again I know this from my 25 years of tinkering with them (and it wasn't mentioned, but it would have perfectly-normal tire wear too, another area where misconceptions are frequent). It's a shame really, because as you said AFBronco, it IS a great suspension that blends the best of both the solid axle and IFS worlds. But if few people have a good understanding of it... the vehicle will still be bound to fail.