On the other hand, the introduction of Liquid Profiling sounds like it could undermine one of the selling points for commercial profilers: that they typically provide a whole profile collection of every possible combination of EQ and gain settings for a specific amp, rather than the disparate one-offs found for free in the Rig Exchange. If Liquid Profiling works as described, as long as you know the knob settings of the original amp, one profile would be enough to cover every corner and every sweet spot. And that, in turn, could make those free one-off profiles much more valuable than they are now.
I thinks it's yes and no. I think one profile will now be more than a single snapshot, requiring a fewer number of profiles to represent it. But the usefulness of multiple profiles at different gain stages remains. By clicking on four or five profiles of an amp in a pack that have certain things constant, a bright switch on and a particular speaker cabinet for example, I can hear at least the profile maker's idealized sound at each of those gain stages without turning several knobs. Now it might be that once I find one profile that I want to work with, then other profiles in that pack prove superfluous after I make adjustments to the modeled tone stack, but the convenience before I get their remains. The reason to buy profile from pro's like TJ is they own tons of gear, mics, cabs, and have spent thousands of hours experimenting with mics and making profiles; any I make on the extremely limited number of amps I could get my hands on would be inferior.
Rather, I think a paradigm change in younger guitarists will render this new feature less helpful. Going back to square 1, the reason guitarist stuck with tube amps despite the convenience of digital is because until the KPA came out, digital always was somewhat harsh and 1 dimensional. We didn't stick with tube amps because their tone stacks were so amazing. Often, amps were one-trick ponies in which the tone stack only had a couple sweet spots. After playing kPA for a decade and not having owned a real amp for over five years now, I have developed a new technique for getting good tone: trying out many profile packs of many amps and finding amp types I like for specific guitars and styles, specific profile packs I like, and then specific profiles in those specific packs that do that thing best. From there, I use the powerful tweaks already available in the KPA to make them better. If I found myself wanting to make substantial changes to the EQ (using the current EQ options or the forthcoming liquids) I probably wouldn't have "liked" that amp or profile to begin with. And why should I, when I have 10,000+ commercial profiles?