While I do think McMurphy enjoys trolling OSU fans, I dn't see anything particularly shady on his part. He did get some pretty crucial information wrong, and I don't find his excuse particularly great - (the box was checked!) He obviously didn't do any sort of follow up to make sure he was right. It is what it is.
Also, the thing with the mom is weird. That she supported her daughter years ago and doesn't now is not some sort of proof that she is lying or has an ax to grind.
In any event, go Bucks.