This is one of the problem associated with a discussion always coming down to the QB... We miss the forest for the trees. Its not that an accurate QB cannot get by with possession receivers with big catch radius but low SEP and YAC, when those 2 are on the same page, they'll absolutely get theirs.
What we really want is an offense build that makes sense. The best way to profit from accuracy and anticipation while also protecting a less than optimal arm is speed and YAC. Especially when you also have to protect an OL with shorter throws, what you're left with is alot of short completed passes that go nowhere. Its not that these players are bad, its that no one is put in position to make the best use of their skills. They've been winging the offense for years down here.
Bless you