Ok. I'll give you that. There is no actual over the back in the rule book. I'll take your word on it seeing as how I'm not an expert on the rule book. And I'm not arguing for the sake of, and surely not trying to be a douche or anything. Let's call it a pushing foul. Any time a player establishes position on a missed shot, another player can't displace him with his body or hands; result is a pushing foul - commonly called over the back - even by professional commentators at times. However, you may be right on the actual term "over the back" not being real foul. Referee will signal a pushing foul in this instance.
And I stand firm on my 'opinion' that Skal was fouled on bag strip. I see a lot of arm take on that play with my eyes (directed to Chuckinden). No worries though, it's just my opinion, I'm no ref for sure.