[Hummingbird] Hummingbird Minification and HTTP/2

The Hummingbird manual says the following
If your Minification page does not contain the Combine option this means that the Combine option is disabled because your server has HTTP/2 activated. HTTP/2 automatically optimizes the delivery of assets for you
I have HTTP/2 activated, but Hummingbird also shows me Combine options.
Does this mean Hummingbird is incorrectly reading the situation, or is my implementation of HTTP/2 incorrrect?