Agree 100% with your post and the final comment is spot-on!
I have already seen a drop off of available SOs at our local matches. Just this past Saturday, two in the squad I was running and whom I could always count on to help, told me that they wouldn't be SOs come 1 Oct. The most telling comment was from the younger of the two who said that he became a SO to understand how to be a better shooter...., and not to become a "plate umpire."
Very Telling...., caused to me to recall the debates going on in the late 90s about standing up certification for those of us conducting IDPA matches. I remember one key discussion about using the term "Safety" over "Range" officer. Since many of us shooting and running IDPA had a Police or Military background, we understood the differences in those two words. A Safety Officer has a Direct & Total Focus on the safety of the participants while a Range Officer is in change and controls the operations of the event.
Perhaps it was a simple way of thinking, but to me it was clear early on in IDPA that the SO's main focus was the firearm and the shooter connected to it.