No, the JNBC Regiment was formed after Grnaby because of the obvious capability shortfall which prompted the UOR in the Gulf at the time. Only a few Fuch were purchased initially and was at least a year after Granby that the regiment was proposed and further purchases planned.
I think I have to agree, with you.... but to back peddle and get back to the original thread, during GW1 we did crew them, not just as part of airfield defence, as part of 1 (UK) Armd Div, IIRC i think 1 sqn Raf regt were also part of that as well, with their spartans & scorpions.
The RAF no longer contribute to the JCBRN Regiment. 1 RTR are the sole CBRN people at present. It will be interesting to see what happens as the JCBRN regiment is funded by the RAF, are based at an RAF station but are now purely army,