I like that the deans of the higher ranked schools endorsed this letter. When the OP made this post, I thought all the deans who would feel this way would be from lower ranked schools. It's nice to see that even the highly ranked schools feel that the rankings are flawed.
Yes. That is true. The first think I checked what schools the deans represent. There are/is from T14 as well (Boalt – at first glance). It gives it more credibility.
Of course ranking appears important, because of justifiable or unjustifiable reasons. My point was that it was nice to hear these voices. People give ranking too much weight – especially we, the potential first years applicants.
Actually I was already admitted and am attending T2 school.