@ricevs, the adult and mature response would be to admit that you are wrong and that we really do know a lot about distortion and how that impacts listening experience.
The is not a "subjective listening forum". It is an audio forum. Those that refuse to learn are destined to repeat mistakes. If you refuse to learn the extensive things we know about sound and how that impacts our subjective listening impression or even to accept that that knowledge exists, then how do you ever hope to design products that more than a few people will subjectively like?
You brought up Nelson pass before. He purposely creates amplifiers that do not accurately reproduce analog waveforms. Not all his amps do this, and not all do that in the same amount. He does this because he has done the work and studied what he can do to his amplifiers to create a better subjective listening experience with a target market. Not everyone likes his amplifiers and you may like one and not another. And because he did the work to find out what people subjectively like and how his amplifier can deliver it, all an "objective" exercise I might add, he is able to charge far more for his amps.
There is nothing "tweaky" or "listened" to w.r.t the LSA. It is off the shelf modules in a box with performance as absolutely dictated by its architecture.