Hyperbole and sarcasm is not argument.  There is some really straightforward language from Jesus on the topic of divorce, so, yeah, it's a "bad, bad sin."

IMO, the resolution to the issue lies not with communion; rather wit how the Church annuls marriages.  It requires some hoop-jumping on the Church's part, and it should require hoop-jumping on the marital partner seeking the annulment, lest a non-fault divorce is set-up within the Church.