twin scoll manifold wastegate question!

[M1L3S]

So ive been looking into twin scroll manis.

I know they obviously need 2 wastegates for the 2 separate chambers. The question I have is ive seen a few with a single waste gate attached to the piping before the collection chamber (sorry I dont know the technical term :/ )

What I was wondering, does this basically stop it from being a true twinscroll?

Or does having one waste gate not matter as long as the exhaust moving into the t3 flange is divided?