I sometimes get the impression that the very idea of a non-Christian heresy is, if not unthinkable, then mostly unthought. Everyone knows how to be a Christian heretic. Vaguely, we can conceive of a Jewish heresy (I suppose you could call that Christianity, from the modern Jew's perspective.) But I've never encountered a Buddhist heresy, or a pagan heresy, or a hindu heresy in fiction. Doubly odd since as far as I know, Buddhism is a Hindu heresy to begin with.
Has any Buddhist ever declared that attachment is, as a matter of fact, better than Buddha let on and that striving for detachment is ultimately a mistake of priority?