For every optically-sighted carry gun, I suspect there are tens of thousands of compact, iron-sighted pistols, so the latter is certainly more relevant in a defensive-oriented sport.
The divisions definitely need an overhaul. When SSP was a division for DA/SA and DAO guns, there was a reason for it to be separate from cocked 'n' locked SA pistols, but with striker-fired guns, guns with 3# triggers (and no manual safeties . . .), dominating SSP, action type is no longer the defining feature that it used to be.
All striker-fired guns should have been put in ESP, not SSP, if action type is still a determining factor.
It will be interesting to see what they do with the reloads. I, for one, would not want a return to the previous, "I can't see any threats, so I'm covered" approach that was coming to dominate. Now that cover appears to be a place (you can't leave this spot with an empty gun), rather than a state of mind, the concept of "continuous cover" can gain traction.
Moving from one end of a wall to the opposite end of that wall, is not the same as moving from one wall to another wall. If everyone can agree on that, good things should follow.