And yet even with that pitfall there is a valid benefit of using a shared VPN over the hotspot. Specifically making your data look like it’s coming from the phone so it isn’t throttled by the carrier as tethered data. The failure scenario being the data goes slower.
I recognize the problems you list as valid, and yet there is still a beneficial tradeoff decision to be made.
No need to insult me, I both read the GitHub and understand how VPNs work.
Even if it only works sometimes, there is still a use case with a benefit. I.e. speed throttling on tethering