I think, as a general statement, that would be true. The simpler the tax system is, the easier it is to explain and the easier it is for people to understand how to get the benefits.
One thing to recognize is that as you simplify the tax system, you might be removing some provisions that are of tremendous value to certain people, so there are lots of interesting trade-offs in all of that.
As the administrator, I can say that yes, if it were simpler, it would make our job easier, and easier not just for us but for the recipients as well, in terms of understanding it.