Here is another idea, he is absolutely not the player you think he is at this point.
Caps D included Orpik and Tim Gleason and other scrubs at that time.
Stop looking for excuses.
2014-15 Washington Capitals Roster and Statistics | Hockey-Reference.com
Mike Green doesn't do what Orpik does. They have different jobs. Orpik played more than Green because of that, but Green doubled his point totals. John Carlson and Niskanen completely made Green expendable on that roster. He was a redundant piece, despite putting up 45 points from the blueline.
What player do I think he is? I think he's a great first pass defender who, despite his warts, has enough defensive awareness to still log top 4 minutes on a roster that struggles to ice a competitive blueline. He's not an answer. He's a bandaid so the blueline isn't a total tire fire. That's worth short contracts for modest defender pay.
I'm all about ire for the Wings' contract situation, but it's not Mike Green, who actually provides value and isn't hamstringing cap flexibility. It's long deals like Abdelkader.