Well, a simple reproduction of the ATA 34 under 11/15 (or whatever describes the related warning) confirming that ALL pitot tubes were disagreeing would end all speculation going on here.
No, but it would answer one question among many.
Mere bad readings of pitot tubes BY THEMSELVES are insufficient to cause a crash. There have been a number of cases of pilots clearing storms, thawing tubes, etc. However there are more questions which are unanswered in this case than we have answers. When looking at some details we must be careful not to confuse them with the big picture
