Comments are underway with, on one side, those who have already pledged to boycott the film and on the other, those who rejoice to get a better visibility for the LGBT community.
Disney Pixar declined to comment the release of the video which continues to swell obvious public reaction. We will in any case know the answer soon since "Finding Dory" is due for release on June 17, 2016.
Note that Ellen DeGeneres is the official voice of the character Dory.
Meanwhile, here is the famous trailer which everyone speaks about: (the lesbian couple is the parents in the park with the stroller)