I was referring to there being nothing in between as the odd part. Like if you look at Seether for example, Broken is a big song by them that wasn't a RBN song and we got that in between the 4 RBN songs being released last gen and any potential RBN re-releases.
Eh, there are many potential reasons for that, all summed up by "Licensing is hard!".
But also, I view Creed as Discount Jesus Pearl Jam (okay, actually I view Scott Stapp as Discount Jesus Eddie Vedder), so I'm not really one to focus on Creed to the point that I want to know why there isn't more Creed DLC.