I don't get it. Why does it matter if your tool just decrypts SSL or you use a tool that decrypts SSL and additionally unpacks the binary representation of HTTP 2.0?
The point is that HTTP may not be the be-all end-all protocol that we will ever want to use on the open web, and encouraging any potential new protocols to take HTTP's lead and use an arbitrary binary encoding that requires protocol-specific tools to make sense of, is maybe not a decision we should take lightly.