The positives were that he dug out a really bad snap on the 48 yd FG attempt, to allow Gostkowski to knuckleball it through the uprights. Obviously his holding was a concern for all of us, so that's a definite positive since those 3 pts ended up being the deciding factor even though the kick occurred earlier in the game.
Another important factor was the fact that Allen pinned BUF down inside their 20 on 3 of those 6 punts, something that you didn't seem to include on your analysis. Not only did he pin the Bills inside of their 20 which is the measuring stick for successful punts,
he actually had 3/6 punts that were pinned inside of the ELEVEN yard line. One was on the 10, one was on the 8, and one was on the 11.
On the day, this CBS sportswriter gave Allen a "B" overall for his punting:
Tom Brady?s Offense In For Some Not-So-Smooth Sailing And Other Leftover Patriots Thoughts « CBS Boston
It also should be noted that Zoltan Mesko was drawing some very negative reviews for his day yesterday for the Steelers, some of the comments which were shared here on the messageboards in another thread. The Pittsburgh fans are not too happy with Mesko's abilities as of today.
All in all we can all understand your concerns for sure, but I think it was a pretty decent showing for a first NFL game. Hopefully he continues to improve as the season goes on.