Not sure what you’re arguing here, I wasn’t saying one is better than the other. My original comment was in disagreement with someone who stated that SM is “far more simple” than BM. I found his argument unfounded based on the reasons I provided. Do you disagree? And if so, why specifically?
I was trying more to point out that minimal differences in gear configuration is negligible compared to diving itself.
SM can be as "simple" as a couple bungee cords, 1 cylinder, mask and fins.
I'm guessing he was referencing manifolded doubles when comparing simplicity. Simplicity is subjective matter based on knowledge.
Preference aside, simplicity is what ever you are most comfortable with. For me, that's SM. YMMV.
Cheers!