Mate I welcome your disagreement, and to be honest would be disappointed if it were any different!
No JTAC no CAS would be my first point, you would be into ECAS territory or going the other way with integrated joint fires planning....I DO NOT claim to be an expert (solid average!)
As for the levels of delivery I'm very comfortable to agree to disagree, it is what it is. I would still counter with survivability but hey ho.
Alternatively I'll concentrate on the very well made point of availability, in an infantry battle group(UK) the only fire support a BG Comd can guarantee is his mortars, I would argue that the F35 would be in very high demand, if so, what replaces it? From a Brit perspective it would be nice to have the hard choices the U.S. have got to make in the first place. We SO poooooor