We are talking here about settled doctrine which has been undermined by a handful of prelates led by Cardinal Kasper. Communion for the divorced and remarried was never an issue prior to the Synods.
There was no consensus within the Synods for a change so the status quo should still prevail.
The vast majority of the First World laity may consider themselves highly educated but that is no proof that they are. Catechesis has been so poor and haphazard that most Catholics' knowledge of their Church and its teaching is in the 'little learning' category which we all know is 'a dangerous thing'.
As for the internet, I agree. It provides a smorgasbord of differing takes on Catholicism, enough to persuade anyone that their particular vices are no longer immoral, in some cases even virtuous. Everyone these days seems to have an opinion on what 'Jesus would do' when faced with today's situations: usually what Jesus would do is what they, themselves, would do.