Hi Hamer Jo,
I'm an electronics-engineer and I'm also normally focussed on charts and figures, frequencies and so on and I'm with you concerning a methodical procedure AND you're right: It's hard to believe, what I say. But you'd listen to this amp's in the room-sound and compare it to a Direct-Amp-Profile over the same cabinet. There's a great difference in Sound and behavior of both.
I regret that I cannot answer your frequency-question because it's not a standard TwoRock-Cabinet: It's a Mojo-cabinet loaded with the 2 TwoRock-customized Emminence-65-B-speakers and I cannot wobble out and measure the frequency-range.
I'm completely with you, regarding studio-sounds and recording-results. The Profiler comes so dammed close to the original I cannot hear any difference - I'm completely happy with it.
As you said: Amp in the room as a sole player now that's an entirely different animal