I think that he would acknowledge the issue with the Collombian study as a proof that it ivermectin is not working. this failed issue seam to be copy pasted all over the internet and the study is miss used - a thing he targets.
Even if he acknowledges a problem with the Columbian study (does he?), it would potentially still leave him in the mainstream, which is negativity or ambivalence towards ivermectin. I actually don't know what he says about ivermectin, but I would *guess* it is not positive.
I base my guess on other things he has said. For instance, at about the 38 minute mark of the Feb. 2021 video interview below he blames the Covid deaths on the 'stupid misrepresentation of science' and that we "need to start trusting the experts again" because "they *did* have it right from the start" and politicians (like Trump) got it wrong.
At another place, when describing what people say of the resistance of the Chinese government to a real investigation into Covid origins, he uses the term "alleged" in front of "stonewalling". So he treads oh so softly when it comes to the Chinese government, even while lambasting populist politicians in the West who espouse human freedom. I think Jed and THHuxley would love the guy.