LE's implementation was done by me to suit my use-case, which is remote access to home from whatever hotel I'm working from this week with all traffic tunnelled. If people have other use-cases; pull requests on GitHub that improve functionality without complex or onerous configuration are welcomed. Note that few people on staff use WireGuard and I have very little time for anything at the moment; so don't expect a particularly quick merge on the submission.
I'm personally liking Tailscale these days, as the setup is super-trivial (when there's a GUI) but packaging it into an add-on requires more time/effort than I currently have. I'd pay a bounty for someone to add it with a simple GUI to handle initial setup.