Well, lets be honest... the Ravens were not good in 2013 with their exodus of defensive players. They are mediocire in 2014 at best. Flacco had a great game where nearly 1/3 to 1/2 of the teams passing statistics have come from.
Peyton's OL has NOT been great or even close to great, what has been outstanding is Peyton's release time. He knows the internal clock is ticking, and even at his age he is still capable of getting the ball out as fast as any QB to ever play in the league. Sunday showed that the Broncos' "great offensive line" isn't all that great. They performed far worse than ours did (and lets be honest, our line didn't perform outstanding against either the Bills or Bengals, much of that is on Tom getting it out quick and on Josh attempting to balance the running game with the passing game) against what is supposed to be a relatively equal defensive front to the Bills, and not only that, the Jets rushed 3 and dropped 8, while still getting pressure, rather often from what I've read on their forums. The Bills brought 4 or more on just about every snap.
And Carolina's receivers, well, they are what they are, they have a future star, at least it appears that way, in Benjamin, but their passing game is nothing to write home about. They're ranked 12th in passing offense but there are a pair of teams who have only played 5 games currently ranked ahead of them.
The Carolina receivers story is probably the most overblown, as they have shown they can adapt, but many of the other "extreme" stories are actually holding true. Carolina may just boast a simple system for WRs as their current group of JAGs + Benjamin is performing quite well, like in a real offense LaFell is on pace for a career year, despite posting 0 stats in the first 2 weeks of the season.
TLDR; I don't think Carolina's WR spot story of the offseason was overblown at all. The spot still sucks, they're just running a basic system to cover up deficiencies and signed a bunch of intelligent veterans as 1 year stop gaps to support their stud rookie, where they look like they nailed it in the draft.
In 2015 you can probably bet that 3 of the 4 top receiver spots will see a new face.