You know, there's a lot of hate against the Cherry stabilizers used by Leopold, Ducky, and others. They're not "current development", but my Amiga 2000 keyboard is PCB mounted Cherry MX blacks with Cherry stabilizers and most Wyse terminals I've used (some for many, many miles) are also Cherry stabilized MX blacks. These were great keyboards on which I noticed no mush, and I'm fairly observant to that kind of thing. Of course I'm more likely to notice now as opposed to when I was using WYSE and Amiga keyboards on a regular basis, but I've been refurbishing my Amiga and the keyboard feels and sounds great (except that linear isn't my preference). I also have a Filco, model M, Topre, some ALPS boards, so it's not like I haven't used other options...
I wonder if Ducky's use of the stabilizers is at fault for amplifying the issue? Or whether it's just the new Cherry stabilizers that suck... Or maybe the black switches covered up the faults? I'm kind of skeptical of that.