Yes, it is new, I was just creating a thread for it myself.
Note that he doesn't say he's feeling "personal anger and upset" but merely that he doesn't say others who may feel it are fine to do so. He says the spellplague wasn't his choice, but that he'll stay onboard.From Ed in 2007:
"This is indeed the Big Risk in all of this, the “roll of the dice” that I wish someone had never decided to make (because I personally value the ongoing development of a shared and unbroken imaginary Grand History of a fictional fantasy setting as something magnificent in itself, an achievement we should all continue to contribute to).
Yet it’s happening regardless of my personal wants, and I choose to be onboard trying to paddle and steer, rather than left behind swimming in the water, calling out that perhaps we should have set a different course."
"None of which means my arguments should be seen as quelling, denying, or belittling the personal anger and upset longtime Realms fans are feeling over this. Believe me, I know how you feel. :}"
"I understand and sympathize with all of your misgivings and raw emotions. I went through the same thing at a secret summit meeting at GenCon some years ago; believe me, heavy-hitter novelists and game designers who love the Realms have argued about this “change” over and over heatedly."
http://forum.candlekeep.com/topic.asp?TOPIC_ID=9905
Certainly, Ed and Bob decided to try to make the best of a bad situation, and worked within the system, rather than try to boycott. However, their misgivings were clear publicly very early on, even if they became less diplomatic in later years as it was clear that WotC was seeing the error in their ways.
I am not sure when you are referring to 4e being "done", but both of them were pretty clearly unhappy with it prior to the 5e playtest, even if they weren't full on bashing 4e realms.
Note that he doesn't say he's feeling "personal anger and upset" but merely that he doesn't say others who may feel it are fine to do so. He says the spellplague wasn't his choice, but that he'll stay onboard.
This is vastly different to inverviews after 4e was done and 5e and the Sundering already in the pipeline. The interviews they gave then were much different, talking about how Ed was almost in tears after leaving the meeting where WotC announced the Spellplague and how they were all the time plotting to undo it in the long run. They didn't ever say anything that negative until after 4e was written off by WotC
And so the "bigger, better, badder" race begins.