Olympus and Panasonic both experimented with cameras without mode dials. There were several Panasonic “GF” models without mode dials, and Olympus made the E-PM1 and E-PM2 without a mode dial.
The lack of a mode dial was unanimously cited in reviews as a bad thing. Because, the reasoning went, not having a mode dial made it harder to change modes. Both Olympus and Panasonic gave up on the idea of making cameras without mode dials. Olympus abandoned its cheap “E-PMx” line, and Panasonic included a mode dial with the GF7 and all subsequent “GF” models.
But now we have Leica selling $2000 “TL” cameras without mode dials, and instead of receiving the same hate as Panasonic and Olympus, Leica is praised for making the camera “simple” and more like an iPhone.