If there's enough demand and willingness on the programmers side, it can be done much easier than you think.
There are always possibilities.
A way to do it would be to have the option of running two different firmware , one would be the usual that we all know and another one would for the pure guitar tone with no effects, just profiling.
I don't think you understand how firmware works. You can equate firmware to your operating system on your computer. Sure, you can dual boot, say, OS X and Windows (or Linux or whatever). Or load just one or the other on a machine. But you're getting Firmware and DSP/Processor power and performance confused.
The firmware on the Kemper is very small. 3.2.1 was 7.5 MB (8.3 GB archive also contained other files, kaos.bin was only 7.5). Reducing that to, say, 10% of the original size, yields a .75 MB (or 750KB) OS. This does nothing for the processing power of the DSP chip. It may take up a slight amount more memory on the larger version, but the variable in question is not your volatile RAM memory, but the CPU, or the DSP chip. In any case, when the front input of the Kemper receives sound, it has to be passed through one or more filters (your Amp, Cab, EQ, Stomps, Effects, Headphone Space, etc.). The most processor-intensive is the Amp block, as it's basically recreating the amp on the fly.
Unless you want to get to a Fractal-degree of performance monitoring where you have to monitor the Kemper's CPU and adjust quality to fit the need of a particular rig, you're never going to be able to profile stomps, at least not on the current hardware. ckemper has already mentioned this elsewhere, that the processor is not capable of handling it.
This would make things more complex to manage for the user... Kemper has proven in the year to favour simplicity and straightforwardness.
Furthermore, running a profile and one or more profiled stomps would mean to run n profiles in parallel: you can bet, if the possibility to use one profiled stomp was ever offered, many would ask for more slots... people are simply never content
Just like saved effects/saved stomps/snapshots/backups/cabinets are "simple" and "straightforward" to manage? I'm sorry, but the Kemper is not a leader when it comes to UI, simplicity, or straightforwardness. They do have the upper hand over, say, Fractal, but Fractal also offers a bazillion more configuration options than the Kemper does.
The Kemper does, in most cases, feel like a tube amp. And that's a problem, because it's not a tube amp; it just sounds like one. There are people that want a great amp sound and nothing more, afraid to tweak and dial in things, and balk at the slightest degree of complexity, software upgrades, added features, or the need to read a manual, just like most tube amp owners - a gain, volume, and three tone knobs should be ample for most of these people, and it shouldn't change. For others, the fans of the digital revolution in music, they want to tweak, control, and manage all the features and functionality they can, don't mind spending some time understanding the difference between two similarly-named parameters, and have a native understanding of how UI design should act, feel, and work. Regardless of whichever way you approach it, it's still a digital amp - a computer, and Kemper's trying to appeal to both audiences. If it's not managed properly, then it's going to be left by the wayside, as are, for instance, stomp group presets. But, rest assured, this is not a thing that will happen, because ckemper has stated the Kemper simply doesn't have enough DSP to handle this type of process. In any case, it certainly wouldn't be difficult to manage (it would be easier to manage than rigs), and, if it were added and you felt it to be "too much," then simply don't use it or don't upgrade.