Eh, who cares about blame?
Firaxis and 2K Games decided to "revise the concepts" of the Civilization franchise. I'm assuming they decided to merge Civ Rev and Civilization into one product line for financial reasons, and Civ5 is the result. (Interviews with developers and producers commented on this, including that podcast with Dennis Shirk, but didn't go so far as to say "we've phased out Civ Rev.") They probably knew that they couldn't sell Civ Rev 2 to many of their veteran fans, so they labeled it "Civilization" on the assumption that many of us would buy it outright. And it worked, in my case, so maybe their ploy was successful.
The result is not something I'm personally excited about - after the first two weeks I just didn't have any real reason to keep playing the game - but they've outright said that this design change was a bid to try and reach a wider audience of "mainstream" players. It sounds like a profit-driven decision, pure and simple. And while I'm sure some veterans DO enjoy Civ5, I'm just not one of them.
My biggest problem is the bait and switch - using the "Civilization" name to sell a game that's not intended for Civilization players, but for Civ Rev players who want something a little more complex, but not too hard. But hey, caveat emptor, as always. It's my own fault for trusting Firaxis and the Civilization brand, but I won't make that mistake again.
I know Dennis Shirk says "keep your eyes on the future" (nicely bland, meaningless marketing-speak for you) but I can't help but wonder: how much more money would I have to pay to make Civ5 into the game I thought it was going to be out of the box, given the "Civilization" name? I'm already regretting the $50 I spent as it is - am I really going to jump at the chance to throw more money at Firaxis, given that I feel deceived about what I've already spent?