What advantage does openHD have over a action camera connected to a analog video transmitter

As far as I know (most of which is probably false, I’m new to fpv) you can get latency of just 150ms with some action cameras connected to normal analog video transmitter, also it’ll have superior live video resolution and quality I assume. So why go through all the trouble of setting up openHD when you can just use a action camera and get similar results?

Answered on telegram where it was crossposted…