I agree that Ford made a mistake a long time ago moving away from the inherently more efficient OHV platform but they are way too far down the road to fix that one now.
As for Ford's passenger cars, I don't know anything about them and have no interest in them. The only Fords I am interested in are the F series and the Mustang. And the Bronco if they make it and it doesn't look like an Australian jelly bean. Back to the point, the V8 is not dead in the F150 or the Mustang. Far from it, at least according to Ford. And if you have some insider knowledge and know otherwise, so be it. I don't believe there has ever been a time in history where more manufacturers offered V8 engines. Even a lot of the foreign ones (you know, the companies that numb skulls used to point to when they claimed the V8 was dead).
OHV NA motor is more efficient in Highway, and some driving scenarios. But Ford builds vehicles to meet the EPA fuel mileage test specifications...and the ecoboost technology is made to get the best fuel mileage under the blanket of EPA testing that is done vs a NA motor.
GM has been anti boosted motors in trucks too...they have a small motor (going to shock everyone) going into the new Silverado/Sierra.
FCA is doing the same thing with there 2.0l turbo. the Big 3 are trying to replace V8s with V6s, and V6s are being replaced with I4 turbo setups. Ford doesnt offer a V6 any longer in the Fusion only 3 I4s.
The 2009-10 F150 had 3 V8 options
The 2011-14 F150 Had 2 V8s options 2 V6 options
The 2015-19 F150 Has 1 V8 option 3 V6 options
There seems to be a trend here.
The 2007-13 Silverados had 3 V8 options
The 2014-18 Silverados Have 2 V8 options and a V6 option
The 18.5 Silverado will be a surprise