TEEEJ
So although it's partially true to say the Typhoon can do Ground Attack that's only if you need P2 and/or a Gun. Hence why Typhoon is no use at present for Afghanistan, a conflict close in nature to what Libya may become.
Over Libya there seems no shortage of AD FJ's. The possible shortfall is Ground Attack, especially if the US steps back as it seems to want to do.
For the UK that puts all the onus on the GR4 as only it can carry all the stores that might be needed. What if this drags on?