I speak plainly and am not afraid to answer questions directly.
Legalist? Explain exactly what you mean by legalism. Unless you mean strict adherence and refusal to believe any proposition contrary to those irreformable definitions, to recede from which one is not a Catholic (cf. Leo XIII, Satis Cognitum), in which case, you have no case.
As for Cano, he encouraged disobedience to the Holy See. I constantly and repetitiously say that we are FORBIDDEN to disobey the Holy See. Your comparison is a fallacy.