Should exported LRB songs appear as LRB or DLC?
And the two poll options (no it shouldn't/yes it should) are the exact reason this thread went down the path it did.
Furthermore, the OP himself has twice stated this this "should" (as well as "has to") be fixed. And at least once has referred to it as a bug.
Due to the mismatching album titles, the three songs from Light from Above by Black Tide do not generate a new Album Challenge as they should.
Due to incorrect configurations, "Foo Fighters Pack 02 Challenge" includes a song from Kaiser Chiefs.
Due to an unknown issue, "Punk Pack 01" does not recieve a Tour Challenge.
Due to an unknown issue, "Every Little Thing She Does is Magic" does not show up in LEGO's Story Mode song list. (It does appear in Quickplay)
For some reason, the Rock Band website has songs listed as FF/SR that are the opposite in the actual game store, leading to confusion when people don't see certain songs in LEGO that they have bought but see others they weren't expecting.
Because of differences in how "Rock and Roll Star" and "Hysteria" were released in Europe, both of these songs cause UK copies of LEGO Rock Band to freeze when they pop up in random setlists. Meaning some people are unable to complete the game...or can only do so if they manage to go through random setlists without hitting either of these songs.
These are actual bugs as these are things actually leading to songs not working correctly.
The 45 songs exported from LEGO have no such issues, break into artist/album just fine, and have no issues (at this time) when playing. There's just a subset of users annoyed that they don't sort seperately by location. That is the definition of a cosmetic issue.