Uhhhhh, I don't think anyone was debating the wisdom of a holster. Rather, I believe, the comment was aimed more at high ride versus low ride (or IWB, or pocket).
As I said above, for my build this holster just tucks right into my side and disappears. For me, the advantage over the low ride or IWB is that it offers clean, unobstructed access to the grip. That's very important because (a) it's hiding under a golf shirt so I've got to use one hand to clear the shirt tail and (b) the grip is so small I need all the help I can get.
Interestingly, the grip ends up not very differently from where it is when I'm carrying my Sig P239 in an IWB. That's an important serendipitous results because it means no muscle memory retraining or hesitation when I reach for it.
I also have a pocket holster, but use that mostly when I'm out working around the house, etc. I don't find the weapon access all that great in the pocket holster (maybe I need pants with bigger pocket slots, but I can't get a decent grip until the weapon is out).