Given that they have not changed the AIMPOINT OEM mounting plates (the old plates are shown as compatible) I would imagine there was no change to the mounting solution. It appears that the new battery cover is the main driver for the extra width.
Also… in the marketing department, it sort of looks like the boys in Sweden looked at what the boys at Walther put together with their over the top PDP video, watched a few Aaron Cowan videos, and said… “hold my beer”.
https://www.youtube.com/watch?v=Js8ni46NN80