I don't care one way or the other about the short mags. The most amazing thing about them is the marketing that convinced the public there was some significant advantage to them. Now that was genius!
But this topic started off about the 325 wsm, not any other. And that one really makes no sense. The 8mm's have been about as well accepted in this country as the 6.5, actually not even that well.
But if you see some advantage of the 270wsm over the 270 Win, have at it. I can't see it and it has nothing to do with resisting change.