I know what you mean, but it was a refreshing of the line in general.
Before and after:
Air 2 completely removed, mini 4 bumped up, and 9.7 introduced. Not to mention the other products launched and the Clips app launch that they would have loved to (really needed to) use stage time for.
Couple that with the fact that they flew in journalists for extended hands on and demos, and took the store down not only for unveiling new products but also a second time for when purchasing began. It's all stuff that could have easily happened (likely should have happened) along with an iPad Pro event this month.