I'm a little puzzled here.
Why should extended range "after the tanker" not be a desirable increase in capability? As Typhoon moves into the mud-moving and Recce environment, surely this would be a 'good thing'? Once the airframe is festooned with weaponry, any stealth aspects diminish ... but in the Recce role that's perhaps a more significant aspect.
Surely this is about reach, and CFT can achieve that while the AAR asset status well out of range of 'Whatever/Whoever"? The future scenario is an 'unknown unknown' an it seems a sensible option, even if not fleet-wide.