It's about the pragmatic view.
While it's clearly not a matter of deep doctrinal importance to avoid eating certain foods, it probably is when you're talking about the core of that which makes us human, to whit: our sexuality, love for our fellow humans and our need to reproduce.
Given that there's so much interpretation of the Bible anyway, it seems unnecessarily nitpicky to say that just because some parts of a particular book are taken as more important than others, it's hypocritical.
Or does having a flexible approach based on pragmatic, contextually-driven (in both the literary and contemporary cultural senses) analysis make me a flip-flopper?
:-)
