No recce task in AFG, then? No TIALD? No strafe?
No-one would pretend that Jag has any use anywhere (let alone hot and high) if the only task is to haul 1,000-lb PWIIs (or 2,000 lb PWIIIs) but only a fool would ignore the useful capabilities the jet does have, and had the jet not been treated as a 'dead man walking' it could have had recce/TIALD or recce/ALQ on the centreline simultaneously, leaving the outboards available for a MCDW or a 500-lb LGB (or smaller).
And in any case, the primary reason for keeping Jag would have been to have kept the cream of the FJ force current in role - in a jet which has many of the toys even if it has none of the grunt.
The disappearance of the Jag sees the RAF lose its only FJ with a helmet sight and a real off boresight AAM capability. With workable ETAPS and EFRCs, etc.