Looking into a bit more detail at the Richo GR IV announcement . First of all, I have never seen a development post before, so it obviously is a reactions to Fuji X Half. One thing I missed was the following :

Internal Memory (Approx. 53GB), microSD/microSDHC/microSDXC Memory Card (Conforms to UHS-I standards)

Hope that is not a mistake and why do more camera firms not do this?