Then I can only assume you don't think there is a difference at all between profile and amp. At least, not a difference that can be described in such terms.
Of course if you are not comparing to source tone, yes, it becomes much harder to spot that difference, obviously, as described. Yes, then maybe there's no "issue", I can understand that -- or no "issue" in any case.
The difference we've seen in so many tests I call a more "ts" sound, including any of my test too.
This is an evaluative judgement between source tone and amp. That is what Townsend sees too, pretty sure about that now.
The reason why I have kept kemper is because just because profiling is not perfect atm, it does not mean it isn't great. My profiles always sound more "ts" than the amp, but that doesn't mean I cannot use them or that they cannot sound great.
The OP issue, I believe, can be resolved profiling a set up that sounds like the tone he is after. A semi-solution, since this may not be easy to do, is getting an amp/cab/mic tone relatively close..
.. Then feeding guitar stem to kemper and refining using that, while careful with the volumes. Some times this doesn't work well. Many times it works very well though.
It should get "fizzy/treble" levels to a more desirable level if it works ok.