It makes sense that Charlie Hall would equate claims by the OO “Rabbits” that there was more than one author to the Torah to those who are extra machmir on Kitniyot.
It is not just Mesorah that is the problem with the OO, it is the outright kefira, abandonment of basic halacha, the hate they display for those who do keep mesorah and the frequent cases of mesirah. And so on and so forth.