Yes, Christoph has previously alluded to this. He's also said something along the lines of classic tones that people like rely on preamp, not power amp distortion. That's not entirely true, and certain amplifiers strongly rely on some degree of power amp distortion to get their character, but that's the approach they've taken. Yet still, if you're emulating amplifiers, why wouldn't you want to accommodate different setups in this way? That's what makes me wonder if the current profiling algorithm can't accommodate multiple distorting stages due to a hardware limitation rather than a philosophical one. If multiple distortion changes could be supported with the current hardware, I see little reason not to allow for it.
If the profiling process takes all stages into account at once and how they interact with one and other at the speaker, I'm not sure what you're driving at.