People buy the "axe-fx reacts identical to the real amp knobs" which was obviously a move to uncut the competition with next to zero demonstrations....
That's how the "conventional" (component) guitar-amp modellers work 'though, Juz.
How deep they go with component-level emulation varies from company to company, but at the very least I'd expect the stack EQ to be modelled 'cause it's second only to the gain characteristics in importance as far as the actual amp is concerned.
As per Fractal's M.O. and reputation, you'd expect the stack EQ to have been emulated more-accurately than offerings from its modelling peers, so the marketing claim doesn't surprise me at all. OTTOMH I'd expect gain, EQ, tube and dynamic behaviour and of course cabinets to all be prime candidates for mention in marketing.
... (unless it has a database of amp eq dials!) I actually remember hearing the kemper was possibly going to do that at one point via a database?
I remember its being mentioned too quite some years ago, Juz.
Given that we now have speaker imprints, it honestly wouldn't surprise me if this is something the team addresses at some point. A collection of the various manufacturers' standard EQ-stack behaviour would be welcomed and a big hit with users, I reckon, but I also think many would be happy to stick with Kemper's proven-and-predictable knob behaviour. Ultimately IMHO it'd be fantastic to be given the choice of employing any of the "models", including Kemper's standard one, in any Profile. I reckon that'd be great!