Muscle Car or Sports Car? There is more than one way to get around a race track.
The owner of one or the other thing will defend their purchasing decision (and dive style) as if it were a religion.
Personal styles while in the process of formation tend to gravitate towards regimented processes. In diving, arguably this is not such a bad thing. Unfortunately, very few divers will adapt their gear choices to the challenges of the specific dive at hand.
I remember how the British divers would show up for their first Caribbean trip with dangling wrenches, wreck reels and lift bags. People come to warm water pretty fish havens, all decked out in double tech wings, cave reels, 30 cu ft ponies, canister lights and all sorts of extraneous hardware.
Not having the dive experience to know how to (as the Brits call it) "kit up" for specific dive environments is an issue of training and lack of reacting to pre-trip research. What will my needs be on this specific dive? To gear up the same way for every environment is not only foolish, it can be dangerous.
By always following the pre-printed dogma of any "dive process" without ultimately evolving to their own style utilizing logical choices and selecting the best elements from each of the dive religions is at worst indicative of narrow or limited thinking, and at best, a formative stage in the maturation of the diver. This is either from lack of personal experience and self confidence or most often- peer pressure.
It is a positive affirmation that one has made the right choices. To ignore the several quite brilliantly conceived schools of dive thought would be equally foolish. Study them all, become and advanced practitioner of all their tenets, but do not be afraid to take what you have learned and apply that with your logical mind.
So, no- there will be no shortage of conflict over the world shaking issues of MOF, Splits or Force Fins, BPW vs BCD, PADI vs GUE, or all of that high level stuff that occupies bandwidth. Not even fins versus flippers!
Among those who must cling to their beliefs, the hardest thing is letting go.