No flames from me. I’ve cut it off and will put it back on because I fabbed my own brackets. I think the car would be fine without it also. I do think the COPO car is a poor example. It only goes in a straight line. I think the cross member does contribute to stiffness in turns.
Agree it’s better than nothing, but still don’t think it’s a suitable replacement for the cross member.
Just my opinions and I have no evidence to suggest anything I just said is worth a crap.