Could is the easy part.
Last year, I was assigned to guide a couple making their first dives since being certified more than a year previously. They arrived on the boat: mid-30’s, soft and pudgy, distinctly non-athletic looking, had trouble stepping from dock to boat.
Each possessed an apparently brand new BP/W setup. The woman’s had a pink wing.
I asked how they happened to choose that gear. They said their instructor, who operates in another state, uses, teaches with, and sells that kind of gear. It’s all they knew.
When we arrived at the dive site, they had trouble standing up with their gear on and making their way aft.
I expected the worst. However, when they hit the water they became different creatures: horizontal, neutral, relaxed, calm. Easiest guide fee I ever earned.
So, yeah. If that couple did it, anyone could learn with BP/W, at least with the instructor they had.
I balk at the “should” part. I’d need to see a compelling safety reason to cross that line.