Its more light weight and usually doesn't enforce any particular way of doing things. Regardless of warp support, I have most of the other things on your list integrated one by one (JWT/dashboards /react/diesel) but it was time consuming as I didn't have a quick start project template.
So I think the work you are doing is going to be valuable for the community. I guess giving an option between the three popular web frameworks (actix, warp, rocket) won't be so easy as you might have very different way of integrating the authentication etc with each. Probably one way to do this is to keep things more modular so that the authentication can be called independently (among other features).
