I see a lot of plans like that , more like a legal services club, that doesn’t look bad but it’s nothing like coverage for a defense of any kind.
Funny enough, the NRA is a path to “Stand your ground” legal defense insurance….or it looks like they do. I wonder if you could use it if you defended yourself with something other than a gun? Kind of joking. It looks like some of these kind of things post bail, and a host of other things if it comes down to it.