He said "bomber" mossie, not "Mossie16" -- there were many clear-nose variants, assuming it was the best, latest-and-greatest isn't what I was replying to.
Given 2 options, one with and one without nose guns, all other things being equal, not many will choose the bomber version.
Also, mossies should never get formations, ever. They were not mass-bombers, they were attack craft more than bombers (yeah, I'll take some flack for that comment, just you watch!), and given that they have NO defensive guns there is no reason to give them formations (with which to defend themselves).
Formations replicate carpet bombing, and replicate (poorly, IMO) box formation defensive capabilities. Mossies neither flew in box formations for defense, nor carpet bombed. I'd like a no-formation clear nose mossie (or 2, 1 early, 1 late) to round out scenarios and such. Personally, though, I'll still take the FB model when flying in the MA.