This will not change the outcome of the proxy fight. All this really does is not allow SD to count the white proxy consent forms they received. If they can not count them it does not matter as they will still count as vote for the current board.
Actually it goes a step further and blocks any consent revocations that they received. This is huge because now all votes for TPG (consent) stay in force. Any revocations that TW/BOD received are null. Now if TPG gets 51% all votes stand. Unless TW/BOD approve the new slate, then they can use the revocations.
I think there may be an institional investor that is waiting until the last minute, which could put tpg over the top. Read the news, even the judge says they violated fiduciary responsibilities. The best thing these guys could do to save any smidgeon of a reputation would be to resign