This was my response in the email I sent over on Blender Market.
Hi Shawn,
workspace filters don’t seem to fully filter out everything. Especially not addon set keymaps, but also other things. It’s a known issue, see https://developer.blender.org/T62567
-MACHIN3
Looks like Workspace Filters and Keymaps are not entirely straightened out……? Hard to tell from the thread. Doesn’t look like the dev’s have replied much as the last statement asks about it being a bug or not.
I can confirm though that this isn’t working the way I thought it was supposed to. I am watching Pablo’s Blender Today#81 in hopes he explains it in this video (based on my google search results haha)