Regular datacrons weren't getting enough rental payments, so CG upped the game. Same way they just doubled or tripled the cost of upgrading characters in coliseum. FDCs shouldn't exist, but CG needs them purely for revenue because people will rent their focused garbage heavily.
Why FIX GAC or TW when you can just rent out garbage to make things 'different' in PVP game modes? No updates for either in 4 and 5 years, but they have no problem making new garbage via procedurally generated AI every 3 months for us to rent. Sure, the new layout looks good and things are a little smoother, but PVP continues to be ignored by CG because one player or guild wins, one loses so they pay out the same regardless. (Let alone rewards that are from 5 years ago that need to be updated, but CG is more concerned about new shinies for us to spend money and resources on.)