I don´t get these requests.
I consider myself very picky with guitar tones, but I cannot see enough situations to justify internal convolution technique or other ambient effects to be added to the KPA effects.
For playing live I use reverb as an effect or it´s off.
In the studio I´m after dry tones, with all options left to place them in the right room/space of the song.
And for headphone playing I´m pretty happy with a dose of reverb already available in the KPA.And I like to add that I´m happy about every dose of noise the KPA loses in the profiling process. There may be some folks who like buzzing, humming and hissing - I don´t know any, and I myself hate it
just my 2 cents
Its good that you feel the KPA is perfect, but I like distant mic'd sounds and tones with character and organic imperfections, and i also like to hear that as i play so i can react to it just as with the rest of the amp, its distortion etc, rather than recording a dry track only to play around with later, otherwise I'd not use a KPA at all.
Lots of folk have nice spaces and would like to incorporate the effect of those spaces into their profiles. I don't see that as unreasonable or a negative.
To my ears the KPA is not perfect and this is one way it's sound and accuracy could be improved, I understand though that it probably won't be so I just have to wait for the next innovator to come to market and continue recording both an ambient mic and the KPA signal to get closer to what I want.