One thing for your to consider is the extent to which the "IPSC Establishment" and "IPSC Lawyer" types hyper focus on optics and "the rulebook," sometimes to the point of absurdity.
For example, in your video, I know some IPSC guys will go nuts about the fact that your not following the 180 principle in your stage design and execution:
Your SO is standing in front of the shooter along his direction of travel.
You have spectators open carrying forward of your direction of travel as you make a right lateral move, and your SO doesn't appear to use "proper" stage end safety prowords upon conclusion of your course of fire.
I know of some IPSC purists who would be keen to label you an "Unsanctioned outlaw league," some will write you off or try to sabotage you, or (as you have seen in this post) drown you with apocalyptic pessimism and cynicism.
My best encouragement for you would be to keep going, no matter what
I think the more people keen to get into this type of shooting, the better.
I started playing paintball almost 25 years ago (before airsoft was mainstream) and my passion for that sport was what got me into both the military and competition shooting with real-steel.
Most important though is getting kids and young people into the sport and community - and that looks to be a niche your program can fill.