Hacking at people's service careers or focusing on a one-word error seems to be a way of distracting people from the point. If you think that Seedcorn, commonality, time and risk - backed up by the unspoken assumption that any competition or R&D program wlll inevitably be a shambles - dictate an off-the-shelf buy of a USN-spec P-8, say so.
Otherwise, it would make a lot of sense to sit down, define the post-2020 requirements for ISR, and work out a way of meeting them that represents a balance of operational and industrial/economic considerations. And be aware that the P-8 is an expensive aircraft to buy and to operate and is chock-full of costly US kit that European industry can make as well or better.