Not understanding the use is a personal problem, I would recommend further educating yourself as your thoughts are less than lucid in this case. Employment has progressed, times are shorter and we're twice as effective as before.
a FFP scope is a tool, not understanding how or when to properly use that tool is evident, same with your thought pattern on the Horus, as well as the use of a spotter. Falling back talking about spotters is at least 10 years behind the curve. It's not like it was in the 80s, it's progressed, well beyond your understandings according to my read.
Same with the competition side of things, you have zero concept of the current state of tactical matches, which is why you fail to understand the need, or the popularity. You can learn and adapt to use anything and be successful doing it, the question is, how much time and effort are you willing to put into it. With a FFP scope that curve is reduced. The speed in which people are putting on the board is not gonna translate if you never experienced it. Moving 10 yards, dropping down and hitting 5 or more targets from 300 to 800 yards in less than a minute and half is not something that comes across well in writing. Even the stages out West, when you have to locate, range and engage 10 UKD targets, that are not painted, and not marked across wide area, being stuck on one power is not gonna serve you. You're scanning, identifying, and engaging targets using the scope, most hover around 12x but will scan at a lower power bump the magnification up to 12-14x to shoot and then you're back down to find the next target making sure you don't find a target you already shot.
Different shooters adapt to different things, how shooter A engages a stage or target is gonna vary from shooter B, and where neither shooter is controlling the situation the more flexibility you have with your system the better your chances are of hitting the target. We don't use Top Feeders either anymore... we know the mag system is far superior. If you're thinking you can look through your NF @ 22x and find everything in time I have a challenge for you. Not having to worry about where the magnification falls is huge. You're running through drop and drift, having to add to that is gonna slow you down. It's also why people use Wind Cheater rounds to absorb as much error in both drop and drift as possible.
SFP scopes are good for Known Distance Competition, FFP are good for Dynamic Shooting, that is both tactical competitions and combat. In combat would you rather have two guys shooting or one guy doing nothing but looking through a spotter ? Most opt to maximize the shots downrange, that is why we now push recoil management so we can spot our own shots. Nobody is gonna spot faster than the guy pulling the trigger, especially if they learn how to do it correctly. The spotter is becoming obsolete in modern warfare, it's a training method more than a fighting one.
Putting your foundation in the understandings of what was taking place 10, 20, or 40+ years ago is the problem here. We are moving forward and the precision world has changed 10 fold in the last 10 years versus the 2 fold changes that took place in all the years prior. We are progressing in not only technology but the practical applications of the art.
Have a friend put 6 targets out from 1 MOA in size to a of max 2 MOA, put those targets out there from 300 to 1000 yards, then practice hitting them in less than 1:30, start from the standing, run 10 yards to the line, drop and begin. Do that and see which scope you want on your rifle. Try it first with the ranges known, then without the ranges, then add in multiple positions, and multiple locations that changes the aspect to the target, it will give you an idea of why people demand a FFP Scope.
Nobody is using a spotter, especially in competition so your request for godly assistance via your spotter is not gonna happen. Even in the military, what if that spotter needs to be shooting or is engaging in security, etc, if you always shot depending on his assistance you'll never be able to do it when you need to by yourself. Learn to manage the recoil and you don't need a spotter, you can do it all yourself.
If all you do shoot by yourself you can do anything you want and it will work, because you control it, take away that control and see what happens. That is the match director job as well as your potential enemy, to walk into a situation thinking you know order of things will certainly come back to bite you.