Nope, it is supposed to show that they are all more or less the same when it comes to passing (along with the overall WL record). Allen's biggest threat at the end of last season was his running, which he has done a lot less of this year. 15 games into their Bills careers Fitzy is the best one stat-wise. Granted there are those who say that you need 3 full years to analyze a QB, but once these QBs hit around a seasons worth of playing, their improvements leveled off and that is where the next thought comes in.
I give you that Allen is the youngest, but over the last few weeks his improvement has plateaued and that is concerning. Can he continue to develop and start growing again this season? How much of it is Allen hitting a ceiling that is much lower than was hoped for? How much of it is Daboll not tailoring an offense around Allen's skillset, which is quite different than Brady?