This post is spot on and you have managed very well to pinpoint the major problem with EJ's game...
Vet QB's are going to miss the proper reads at times and get off their game a bit while being pressured...Brady and Manning are the best in the business, but both have a history of struggling when intense pressure is brought...especially when that pressure is brought up the middle...
There seems to be a a ton of over-analysis concerning EJ considering he just finished his 13th NFL start... The truth is over the past two games, and for most of his 13 game career thus-far, if he simply hits his receiver in stride when he makes the right read on plays the Bills offense would be light-years ahead of where it is now...