Okay, real talk:
"Drown" by BMTH is a great song. So what if Oli isn't screaming, or if it isn't as hardcore anymore? Go listen to something like Capture The Crown or Tear Out The Heart if you want something hardcore. The guys obviously worked hard on this song, and wanted to try something new. And I think it's great. If you don't, oh well. No one is forcing you to listen to it, go listen to their old stuff. Just don't hate on them for giving something new a go.