I wouldn't say the Eco-4 is 'far superior to large displacement V8s' exactly...
It's cool that it's a sub-5 sec engine, but the same article has a v-8 that's sub 4sec...
Now that it's clear we both can read, and both read the very short article. Never did I say that the eco boost is faster. Yes the coyote is faster but it's only a matter of time before the eco boost catches up. It's already closer than it was before.
There are also other factors which could make it a better motor, reliabllity, fuel economy and others.
Now the 4 cyl eco boost isn't faster but the 6 cyl is far superior. Hell its even better than the **** 6.2 in the first gen Raptor. Now that Ford got the Raptor out of the way, it's working on the Mustang.
Just like the Raptor community, there are tons of hard headed "American cars must be v8" "it's not a mustang unless it's v8" people out there. If people weren't so hard headed the v6 eco boost would be in the mustang and the mustang be far superior.