That's true, but you can't automatically assume there is a silent majority who is happy with the change just because happy people tend not to submit feedback.
There's no need to assume in either direction anyway since pg posted a poll on this a month ago, and the "bring back the comment score display" side "won" the poll.
Still no return of comment scores, though, which is fine because hacker news isn't a democracy, but there are many people out there (including me) that would like to see the point total display returned.