I don't think too many pd people will worry at all because I don't think
that many peaple are working with multi channel MIDI controllers like the
ROLLI Seaboard or the LinnStrument, etc.
quotting a discussion from somewhere else:
"an MPE capable device is not a requirement to enjoy the versatility of MPE midi - same style of sound manipulation is equally at home sequencing vst~ and synths like Omnisphere, Kontakt etc"