It is unique because everything is quantized. I've never used these tools but I am assuming you could give it some level of randomness but as someone who has performed and recorded a non-quantized performance is not random. So sure, it's super easy to quantize in your daw but it is a tool to be applied when needed, not something that is on all the time by default.

yes exactly, and when I say "quantization of every dimension of composition" I mean an application of quantization to every aspect of composition not just pitch and rhythm.

Quantization and repetition are what some genres depend on. It won't be the right instrument for a Rock ballad, but for a Techno track you need this kind of "everything being quantized". That said, in loopmaster you can add swing and noise to the note offsets to humanize a sequence, a lot is left to the imagination and ability of the creator.

No one in this thread is saying quantization is never appropriate.