I never watched any of Rebels, and I've only seen the first 2 and last few episodes of Clone Wars. So I'm not all that familiar with the continuity outside of the movies.
But, from everyting I'm seeing here, there are WAY WAY too many Jedi left around in the galaxy after Order 66.
I guess that's the downside to the "Filoni" verison of Star Wars. In Lucas' version, after RotJ there was Luke, and that's IT. Luke was left to rebuild the Jedi order all by himself.
But now, apparently, thanks to the cartoon and video game universe, there are dozens of Jedi still running around that most casual fans never even heard of.
If you take it too far it waters down how important Luke and Leia were as the last Jedi hope, plus his "No, there is another" sister.