Seems to me that switch mongo came about when all that mattered was doing the techest shit, and making it look natural was less important. Now that style is such a big deal, switch mongo is like the dodo bird, except not extinct just yet, thanks to certain 90's cats.
Another theory I have is that dudes only do it so you KNOW the trick is switch.
I beg to differ. Style is kinda lackin these days. Most seem to be more interested in just the trick. Gino, Gonz, Keenan, Carroll, Huf, Cardiel, Sanch, Chico, Bertino,Stevie, Drake Jones, Lotti, Jovante, Sheffey, Rick Howard, Kareem, Koston, Bici, Gangemi, Correa, ect, ect.
Those dudes were style. Just so happened they had I'll tricks too. None of those dudes pushed switch. Pushing switch is more for the young cats. Some old Philly shit was pushing switch because they cared too much about trying to make their style look more natural... But really it looked fake. I watch most of the kids pushing switch... And think... Just push your stance. You'll usually go faster... And it's natural.
In my opinion of course. Lol.