We can argue about the terminology but from the perspective of the company other WireGuard clients (including the official ones) are 'third-party' in the sense that we don't control them. That makes supporting users of those clients more expensive for us (e.g. we currently have a mobile app for Warp, someone calls our support asking for help with a Linux client...)
Not supporting a configuration is much different than actively prohibiting it.
It's okay to just say, "Hey, we are running a free VPN. We're making some privacy guarantees and are trying to log as little as possible. That exposes us to being abused, which means that we have to put some limits in-place on the client."
I know this is the last thing you are worried about right now, but could you at some point look into tasker integration. Its really easy to provide a tasker interface. I would love to be able to control when 1.1.1.1 connected.
