Apologies if that in any way came across as a personal criticism or rubbishing your view. That was not my intention. I certainly agree with the point that the cross arms grip is inherently more unstable than a clean grip. There is a tendency for the bar to tip one way or another - but I feel it's manageable.
However, for me, no matter how hard I tried I simply couldn't do the clean grip. I'm not sure why as I think I have decent flexibility. In the end it was a choice of either not doing them or using a cross grip. The OP may - or may not -be in the same position.
Like you, I'm offering my own perspective. If you say that that a particular grip shouldn't be used (initially without giving a reason), and I've had some success with using that grip, I don't see why I shouldn't point that out.
230 strict press @ 220; bodyweight+187 X 4 dips @ 180; 403 front squat @ 210; 10 000 push-ups.
Ignoring irrelevant credentials since I was 17.