There's ya problem.
What problem is there, exactly? When a V6 ecoboost will out tow, out haul, out perform in every way a V8 from just a few years ago AND get better gas mileage too, then I don't see a problem.
And how long will this little "whizz-bang" 6 cylinder hold up??
Give me the big 8 with a broad power curve even at low RPM.
The power curve has always been a problem for the whizz-bang sixes.
Whizz-bang ain't going to beat cubic inches for the long haul, plus there's a hell of a lot more to go wrong with a whizz-bang 6 since they're pushing it so hard.
Get back to me in ten-fifteen years, we'll talk about dependability.
I kept my last truck 15 years, no engine problems, expect to keep the new (2013) F150 V-8 ten to 15 years.
Wouldn't expect that out of a whizz-bang.
I had a 1989 Mustang GT with the 5.0 and a 5-speed, and 2.73 gears in the back. It got me, at best, 21 or 22 MPG on the highway, and was good for about 16 the rest of the time. IIRC, it was factory stock with 225 HP and around 300 lbs of torque. It was good for mid-14-second 1/4 mile runs at around 90 MPH and cost around $15 thousand.
The new V-6 Mustang puts out 300 HP, about 280 lbs of torque, and gets 30 MPG on the highway. It also does so for under $25,000 26 years later.