I have a very low opinion of the commissioner, but in this case what is he going to say? One of two things happened. Either the refs missed it at full speed, which i'll admit is a stretch that I only entertained because I missed it at full speed. Or the refs ignored it because they didn't want to decide the game. What could Roger possibly say on this matter that everyone doesn't already know? I'd rather him be silent like with every other non call than to come out with a scripted lie.
How about something like "The officials missed that call. It was unfortunate, as are any other mistakes in judgement. However, it is a sport played, coached and officiated by imperfect human beings and mistakes or differences in judgement are to be expected. That said, we are looking at ways to minimize these mistakes in the future to the extent that is reasonably possible."
Frankly, I believe the Commish isn't speaking on advice from the NFL lawyers. There are only 2 things the NFL fears - loss of revenue and litigation. To the later, many of the "player safety" rules aren't spurred by a sincere desire to improve player safety, but to have a defensible position in litigation.