I think WWE is testing out what gimmick ppv will sell the most and the one that does stays and the ones that don't go, if that is teh case then yes I am fine with TLC being a ppv, if not then I hope to God those matches are awesome or else this'll be a huge waste of time. I think their should only be 3 gimmick ppv's at most, and if they are testing which one will work this they will those three being: Extreme Rules, NWO and TLC, BP, or HIAC.
As for this happening it's proves that evolution effects everything it's just wrestling evolving, it went from Steel cage to HIAC, Elimination Chamber or Steel Asylum, from ladder to TLC or Ultimate X, and from those to something completely different it's hwo everything works. All of the base matches have been put on for free where as the TLC, Ultimate X Elimination chamber haven't but eventually they will it's how life works.