Oddly enough, I have had the same impression for the last several weeks.
Honestly I have been waiting to hear the results of the Maple User Interface Survey. But I doubt this will ever be shared.
Doug mentions new energy at the beginning of the academic year. My experience has been that at my institution, I become exclusively taxed fielding questions that can always be traced to 2D Math Input and/or Document mode. It has just become the same thing, year after year. Nothing has improved.
We set up out general access lab computers to start in Standard worksheet mode with 1D input. But whens students buy their own copy, or a new faculty member has a special installation on their office computer, the whole issue comes up all over again.
Instituionally, we need to decide if it continues to make pedagogical sense to use Maple in the undergraduate curriculum. Before about Maple 10, it was a no brainer. But now we never seem to get beyond interface issues.
"There's no there there" as Gertrude Stein said.