Very interesting. I noticed in the Giant Bomb interview, when one guy asked him what he learned from the 1st to 2nd raid and then the 2nd until now, he only talked about VoG. Makes a lot of sense, pretty much what I've always said about how CE felt like it was made by an incomplete team with a lot less dev resources.
Vault of Glass set the bar pretty high, I think. Crota's End wouldn't have been looked at so poorly if it had been through testing more. Being able to solo most of the raid did
wonders for it's reputation. Running it now, though, it's not too bad. Not as amazing as VoG, but not a bad raid, really.
All in all, I think I preferred the launch of Crota's End compared to Prison of Elder.