this is actually more something you'd hear at the end of "How to Train Your Dragon"
not the classical, encompassing, nuanced songs from "Lord of the Rings". This song is fine and enjoyable on its own, but it doesn't hold a candle to anything from the previous musical attempts in LOTR.
I know the argument will always come in when someone says "but it's a lighthearted adventure!" for the most part, yes it is; but the world is still the same. Things established in previous films need to be preserved to maintain continuity and that rustic ancient-sounding tone LOTR did so well.
The song feels like it was made - unfortunately - more to be hip with the kids of today and feels like it's trying to get to the charts, rather than keeping with that ancient musical flavor the LOTR films gave us. I'm also disappointed that there is no unique song made for the credits like each LOTR song had. "May It Be" had no relation to the score or themes in the actual film; same with "Gollum's Song". "Into The West" felt appropriate because it ushered an ending and made a musical conclusion using a motif from the score.
This one simply feels like: "we need a song at the credits because reasons." "Okay!"
as for "That's What Bilbo Baggins Hates". I heard the song as well! The only thing I see very confusing - and I vented this to a friend just a week ago, much to her annoyance - was that there is accompanying background score. No song in LOTR ever had that (Pippin's and Aragorn's song in "King" is justified since it was an emotional moment that the score had to back up with a heightened impression), and to keep to that realism, rather than trying to be goofy and happy, it would have been better to have kept it score-less. Therefore it would have felt more natural, real, and impromptu since I can imagine they made up the lyrics on the spot. Plus, the dwarves would seem more charming without the help of the artificial-emotion-boosters of the orchestra and would have made Bilbo seem far more annoyed.
