Greetings Jigar,
While I can't speak for the core Gerrit devs, I personally find that
option hard to understand in context of how Gerrit is designed to
operate. I can't think of any time where you would be updating multiple
refs at the same time given the GerritFlow paradigm of patches. It's not
possible to create a change that would affect more than one branch at a
time. Though a given change might be cherry-picked into another branch
at after it's been merged into the branch targeted for review.
-Andy-