Because I'm afraid there's no editing screens.
For example both Massive and FM8 plugins have "performance mode" in which you control selected parameters of the patch via (pages of) 8 macros and I'm pretty sure this is how it's gonna work. I assume it's a full synth underneath, but Maschine+ editing will be limited to macros. Something like Arturia's AnalogLab, FL Studio's Flex, Force's Hype or Nexus. Which I guess is still pretty great, especially if you could make your own patches with VST and export to Maschine+