That's Creativeadmitted, “We are trying to figure out the phylogenetic relationships of 1.8 million species and can’t even sort out 20 [types of] yeast.” And so it is good to see a new paper that admits that data are routinely filtered in order to satisfy stringent criteria so as to eliminate the possibility of incongruence.
And what is the solution to this dilemma? As usual, a theoretical failure is converted into a success by adding yet more epicycles. Or as Lakatos might have put it, the core idea is protected by the addition of yet more auxiliary hypotheses. In this case, the incredible emerging view is that incongruence is now to be interpreted as a powerful phylogenetic signal that is desirable, as it often illuminates previously poorly understood evolutionary phenomena. Once again a prediction that was hailed as a powerful proof of evolution turns out to be false, and the story is simply flipped on its head, thus preserving the success of the theory. Where congruence was once claimed as a powerful phylogenetic signal, now incongruence takes its place as the powerful phylogenetic signal. You cannot make this stuff up.