Wasn't that video taken after the Kincaid pick? If so then they would have no reason to discuss Kincaid at that point. While I agree that La Porta was probably higher it is no guarantee that the Cowboys are covering for the fact that they wanted Kincaid. Did the Cowboys want Kincaid? I have no idea, but the Cowboys do have a tendency to telegraph their picks so it is not out of the realm of possibilities.
There will always be some truth mixed in with fantasy about the Cowboys or some team duping another, it is not that big of a deal, we will all know in 9 months who duped who.