Bit of a tricky one this. It all depends on the user, IMHO.
For instance, for hunting I use my AA 410k with a SWAT 4-16x56 and its never let me down. For FT I used the same scope on a Daystate X2s and it does well enough (although I intend to fettle it a bit more before my first winter league) and only last week I used the same rig for a HFT course at my club.
I got away with using it and got a decent score. Only difference was, I left it at fixed 12x mag (I later found out I would have been better off using it at 8x instead) at 35 yards zero. In my honest opinion, some people tend to go OTT with following the crowd. I think people should go with whatever they feel is right for them. Afterall, that's whats matters the most.
I've seen some guys with great kit who can't shoot for **** and other guys with really basic kit who can't miss.