One possible argument against a DQ is that the Masters is supposed to be about historical traditions. Historically, you wouldn't have people at home carefully reviewing video and interview transcripts to conclude that Tiger should be DQ'd.
This is really blowing up on Twitter. Hank Haney is worried (Haney thinks Tiger will win if he doesn't get disqualified). Bob Estes says it was a clear infraction. The list goes on and on.