EA has never been about critiquing the existence of researchers and think tanks. In fact, this is part of the story of EA’s founding. In 2007, the only charity evaluators accessible by normal people rated charities entirely on how much overhead they had - whether the money went to white-collar people or to sympathetic poor recipients. EAs weren’t the first to point out that this was a very weak way of evaluating charities. But they were the first to make the argument at scale and bring it into the public consciousness, and GiveWell (and to some degree the greater EA movement) were founded on the principle of “what if there was a charity evaluator that did better than just calculate overhead?” In accordance with this history, if you look on Giving What We Can’s List Of Misconceptions About Effective Altruism, their #1 Misconception about about charity evaluation is that “looking at a charity’s overhead costs is key to evaluating its effectiveness”.