The terms of art we depend on to facilitate discussion in traditional RPG spaces were designed to describe a particular arrangement and structure of play. When you limit discussion to only those terms of art you are limiting it to only that particular structure of play. It's not just Forge terminology that seems to be an issue in this community. Stuff like shared fiction, fiction first, scene framing, kickers, bangs all seem to be an issue here. If we cannot the terms of art that actual games use to describe their own play structure, how can we meaningfully talk about those structures? What their implications are? Where certain play structures fulfill certain player desires better than other structures?
How is this discussion not about putting other sorts of play (aside from traditional play) into a ghetto?
This also includes OSR play by the way which is likewise treated as a red headed stepchild on these boards.