That's actually a pretty critical insight. So, the profile is not a profile of an entire amp and all the sounds it makes.
It's only a profile of that amp at whatever time settings it had at the time. Any "tweaking" done on the Kemper, such as adjusting the mid, treble, high gain, is just software by the Kemper. Is this correct?
Just to expand on this....yes the KPA cannot profile the whole amp. It takes a snapshot at the current setting.
This is the key bit....
You can of courser change the eq and gain settings on the Kemper post profiling BUT as most amps have interactions between the EQ settings etc and therefore not linear, the KPA will become a less accurate version of the amp. That doesn't mean it won't sound good though.
So please don;t think you can;t change the sounds and get good results or that its wildly different. Its also an advantage. I can theoretically dial in more gain on an AC30 profile than a real AC30 ( not that you might want to, but its possible).
The reason I ( and many others) don;t tweak is because:
1) If the starting sound isn't good, then there is a good chance you can't EQ you're way out ( not always true - many find the MBritt profiles dark but with a bit of tweaking come to life).
2) I'm lazy and I often can;t hear wants wrong with a sound, I only know its not right. Therefore is better for me to move on. That's a personal choice.