If it's my comment you're referring to, I said it "happens" to work in IE because if we are to believe the team, they didn't try to make it work in IE. It just does, by coincidence, for now.
Support is a commitment, and committing to IE will mean work down the road that these people have decided not to do, because it is not valuable to them. This attitude of "Oh, it works in IE right now so they must just be pedantic asses" is short-sighted.