I think you present a false dichotomy.

Those who sat in judgement of those they accused of dissent are now guilty of the very "dissent" they claimed to abhor.

Whereas those who applied their minds to careful consideration of each particular "church teaching", using their God-given faculties (the very ones which cause us to be labelled Homo Sapiens), and came to reasoned conclusions about any given matter ... well, they simply continue to utilize this scientific method with each individual case which presents itself (be it use of artificial contraception as a means of family planning, be it support of married gay couples, be it reception of communion for the divorced and remarried, etc). 

That they might derive a little schadenfreude out of seeing self-proclaimed loyalists engaging in acts that they would under a previous pontificate have labelled as flagrant dissent might count as a mere venial sin, no?