Globally isn't the truck-loving, power-living US of A. And some of these trucks will be used for work. => Capability matters. If you think some American consumers won't walk away from the Ranger because it doesn't offer a 6-cylinder option, you're mistaken. I'll wager my Marketing/Consumer Behavior degree on it.Again, I can't comment on if Diesel is coming, and I would be fine if it did as that is a unique customer, but more gas is simply not needed. The NA I4 engine choice is more power and torque than the biggest engine available globally, which don't forget is only with 6 speeds. So I am sure that the work capacity for NA Ranger will easily best the global unit, which bests the current competition btw. And again, more power is coming for Raptor, which will be a hit no doubt. So to that tiny single percent digit that asks 'why not', I will have to defer that question to similar questions that will surely ask....'why no 5.0L or why no 6.7L or why no new 7.3L.....and on and on.
It's not just about the power. The character of the engines is completely different. Drive the MKC with the 2.3T then hop in an MKX with the 2.7T and there is absolutely no comparison ... and that despite substantial weight penalty.The power differential from 2.3EB -> 2.7EB is only 15HP and 30ftlbs. The bigger issue may well be NVH improvements that would come with the V6.
Two buddies each bought an F-150 last year. Both went into their test drives undecided on powertrain. One purchased the 3.5 EB, the other the 5.0. They both found the 2.7T adequate, but despite a limited need for hauling or towing, adequate wouldn't cut it with either of these guys. The argument about who purchased the "right" engine continues to this day, and I suspect it always will. Choice, as they say, is a beautiful thing.