So, not only is the rejection of something that's "theologically certain" not heresy, but the theological note is also just opinion. Most of Father Cekada's list did not even qualify it as theologically certain.
You write a lot, but are not very intelligent.
I know of no theological point that has received so many notes of certainty and yet there are some people insisting on calling themselves Catholic by disputing it.
What theologians challenged it before VII? None. Because they would have been excommunicated.