I know you're trolling but...
There's a reason why you yourself forecast 4-7 with lollis to 10" during events. You know there will be areas that get higher, but you don't know exactly where. Local flow, local elevation, etc will all effect snowfall amounts. But so will measurements. Cory was measuring (not clearing) frequently, and reported his highest snowfall depth which is totally within the guidelines. But if someone measured when the snow ended only, or an hour after, or an hour before, snowfall could be inches different. And mapping software just isn't equipped to handle that level of detail when you have to fill in areas of no obs compared to areas with 3 very different obs in the same town. We could create that map and put it on the website and you would complain it looks like swiss cheese with all the circles in it, but that's what happens when you include every outlying ob.
There is zero issue with a map that says 8-12" over a large area but including lollis to 16".