Yeah, why not … if the people porting it would just hurry up please 
…
And while we are at it, Sailfish OS works pretty well on the FP2 already but could use an Alien Dalvik license, and where was this Ubuntu Touch again?
The FP2 is a fine base for alternative OSes already, and Fairphone are officially supporting a minority of users with an Open version of their Android already. Officially supporting another small minority choice for an alternative OS could well be quite at the end of their priority list at the moment I guess.
But just in case … Sailfish OS with Alien Dalvik, please … and an officially supported port of EFIDroid 
.