What would be the reason for their laptop to exist? People on the move get the steamdeck. Others get the GabeCube. Based on the steam hardware stats / graphics cards, there's very little laptop usage. I'm not sure there's enough market to get them interested.
The reason would probably have to be because the employees themselves want such a device; maybe there could be some angle of having an ARM dev machine for the Steam Frame. I agree that it seems unlikely though.