Some people are very concerned with playing an authentic profile that has come straight from the real amp. In the same way that Line 6 model the controls to the amp (with a Cut control, twin volumes with a channel etc), some people have a hard time accepting that the EQ in the KPA isn't consistent with the profiled amp.
So what? The models in a Helix aren't authentic either, it's just an algorithm that behaves in a way that someone has decided mimics the behaviour. What if you found out that your favourite profile was actually captured from an AxeFx? Would you be upset and change to something authentic which you liked less?
I'm not actually bothered about having a great AC30 for the intro to a song, I just want the tone in my head. If that falls in the AC30 ballpark, then I'll likely use an AC30 profile that sounds best to my ears. If I then have to tweak it to fit the context, so be it.