It's the same as someone trying to mimic a style. Nothing wrong with that. Certainly not something you could get copyrights from.
Sure, it's not copyright infringement, but you could argue that this takes away from the hardship the original artist had to go through to perfect their style.
Which was precisely what the discussion was about.
> But you could argue that this takes away from the hardship the original artist had to go through to perfect their style
You could argue the same things about photoshop, a lot of other digital tools, drum machines, the photograph and the phonograph.