Steinberg should come with a statement why the mixer is what it is and a statement on performance impact.
My sole concern is that I don’t want performance/ergonomics consessions to cater for a few EDM lovers.
If performance is not impacted, my suggestion would be to make mixer 2 or 3 the “extended” mixer for the ones who want more. But if it affects performance, or primary mixer ergonomics, it’s a no go.