I'd like to approach this question of dialogue in a different way:  Why is it that hardly any priests or bishops make themselves available at open speaking events in their areas?

The way things are these days, priests say Mass for an hour on Sunday, and that's the last you see of them until next Sunday.  What about the other 167 hours in the week?  Why aren't any of them making time for speaking/public discussion/education events in their parish?  

The priests are "too busy" for an hour a week to dialogue with parishioners?   That's the usual, line, but I do not believe it.

Frankly, I suspect many of them are afraid to meet with the public in an open forum.