No. There's an equivalency being made here between the validity of Dr Biden's doctoral thesis and the validity of Sir Isaac Newton's doctoral thesis. That's how doctorates work.
Also I don't think you know what equivocation means.
Let's just settle on one imagining that when a person with an apparent bias towards Jill Bidens' academic prowess, might experience cognitive dissonance, if they came to the understanding of the context in which the word "equivocation" was purposefully used regarding Jill and Sir Isaac Newton.
It may be a mystery, yet there exists little need to prevaricate around the bush.