No. My argument is elevating receivers is about more than the QB.
Just thinking of a receiver at random: Terrell Owens had only one 100-reception season (in 2002) in his career and his top receiving-yards season was 1,450 in 2000. Before that, he had just one 1,000-yard season (1,097 in 1998) and no more than 67 receptions in his first four seasons. Know who the QB was during his "elevated" seasons? Jeff Garcia. Know who his QB was before that? Steve Young.
There are really too many factors to even consider. It could be opportunity for the receiver after not getting as much previously. It could be blocking by the offensive line (if it's poor, the QB can't hold on to the ball long). It could be the other receivers and tight end drawing away coverage. It could be a strong running game causing defenses to have to focus on that. The QB is a factor, but just one of many.