Thanks for the note. I’m glad you found the resource to be helpful.
To answer your question, we used industry standards in that report (in the post) as we do not currently provide that data in the govDelivery UI. In general, we highly suggest that you always design for responsive/mobile, as we do know that citizens generally follow those industry standards, though we understand it may vary depending on location.
One related item that may be of interest is that we do provide text channel analytics on the Bulletin Detail Report. You can read more about that here.
That said, here in govCommunity, we are actively looking for feedback from customers like yourself, and so, I am curious – what would be the value to you if the mobile vs. desktop data were accessible in the govDelivery UI? What might you do with it?