HTTP/2 largely won't help the problems mentioned in the article. If I'm loading 200+ assets for 30-50 hosts, HTTP/2 can't help because I'm making 30-50 TCP connections and fetching 5-8 resources over each. The efficiency of HTTP/2 over HTTP/1.1 really doesn't excel when fetching so few resources per connection.
HTTP/2 helps when you are downloading 200+ assets for 1 or 2 hosts.