Morgan, I totally agree that short flange is a great thing. But there are so many great PL lenses around (and rentable); we end up using PL on a bunch of corporate stuff, some fancy-trouser doc interviews & re-creations, and the like. This hashtag is trending: #plnotjustforfeatures ;-) But granted, that tends to be on projects budgeted for ARRI cameras and such.
And ya, the MK zooms seem great for the price (will probably be working with them on a job I'm producing next month, with FS7 cameras). L-Mount is promising, but I'd want a whole bunch more glass available before I jump in. https://l-mount.com
Geez, I sure hope a few more lens mounts get announced at CP+ and NAB. :-/