Having said that, my choice does not have to be applied to anyone else, especially rec divers.
I just spent a week on Bonaire with 17 divers, mostly very experienced, using everything thing from double hose/plastic hardpack/harness 60-70's rigs, to tech rigs, to resort rentals, and various combinations in between.
Buddy Dive ops no longer even ask, when they see us rigging up. They just say something to the effect: "Oh, you guys again. Welcome back"
I think any well trained, experienced diver aught to be able to safety adapt to whatever rigs they see around them, or be able to learn by asking another diver if their rig is totally offbeat, or beyond their experience.
It is not up to me to decide what another diver should have for gear, and I only talk about my choices when asked.