Photographers just want it all! ;)
It's gained an extra stop of sensitivity as the main camera is now f2. Smaller sensors can have increased dynamic range. Just look at the super35 Canon C300 III and C70 with their DGO sensors which are...
Happy with my M3Pro, have nicely aligned cameras meaning predictably sharp corners at play. But, if the M4Pro has greatly improved still camera specs and I am able to shoot say 3x3 or 4x4 grids in DNG with the telephoto lenses for stitching...