First off, I never heard of the Ravenclaw Coven, and I had no issues with the council itself. As for the council being a huge secret and not a bunch of students, fair enough.
On the other hand I still disagree with you on the legilimancy side. Just because Dumbledore and Snape have been using it on him doesn't mean that they know every little detail of his entire life, just the things that he's thinking about at the moment they look him in the eye (as long as they don't say the incantation and use a wand).