My concern isn't about any current AP clients; it's that we'd be cutting off a whole dearth of potential future AP clients by making it the general expectation that all viable AP clients support WebRTC, and thus the task of building a client goes from the relatively simple "support json over http" to "support those + WebTorrent/WebRTC", which (despite what you say) isn't trivial (unless the client is in-browser/webview). Even if "just hook up a library" were a viable solution, the requisite increase in complexity/LOC/bugs would be really unfortunate. If this were the case, it seems to me we'd lose a lot of potential future diversity in AP clients.

I'm having trouble finding any complete WebRTC implementations outside of browsers, do you have any examples?