Three people saying that they like an article is not "established consensus". Moreover, Tony's concerns show that there *isn't* a consensus that this article should be FA.
Three people saying they like an article *and no-one saying they don't* is consensus. Generally, it is only necessary to speak up if you disagree with something. Yes-men serve little purpose in consensus driven decision making.
There is a difference between consensus and unanimous assent. One person objecting, without discussion, does not destroy consensus.