Agreed @github.com/cwilso. Given the feedback in the comments, I accept that the marginal benefit of explicitly adding "malvertising" as less than the marginal costs of doing so (document length, jargon/uncommon term).
I’m open to other purely editorial changes that help simplify the Vision and improve its readability, but those should be proposed as separate issues / pull requests.
Per @github.com/cwilso’s proposal and no objections to @github.com/TzviyaSiegman’s comment, since I filed this issue I am closing without prejudice.