Because manually configuring wireguard tunnels on random devices is a simple task for most people lol. Unifi’s whole stack is all about making powerful tools easier to use for people who don’t want to fuck around with networking.

Agreed. I use Tailscale (which the gl.inet devices support, because they're basically a pretty front end for OpenWRT, and it supports Tailscale) for my stuff, because I can do it and it's not a real pain to do, but you do have to know a bit at least about networking. This thing looks extremely promising for the "I know this should be possible and I want to do it but have no idea how" level of knowledge as well as the "I want to spend as little time as possible on configuring things" people.