You guys remember before he returned from his injury when I would constantly refer to him as "post-prime Rondo" despite the fact he was like 25 years old ? I got a lot of grief for that.
Honestly though I think it's mostly a system thing. He's never been as good as people thought he was. He's the Antoine Walker of point guards. If some team brings him in next year and lets him dominate the ball again, he should be right back to getting 10+ assists per night. I'm not sure why Dallas thought it was a good idea to bring in one of the leagues worst offensive players to fit into their floor-spacing offense with a ball-dominant guard alongside him.
I said at the time of the trade that my favorite running subplot this season would be seeing the "rondo overrated debate" finally see a conclusive winner. What he's doing on Dallas seems to firmly answer that question. Let's see if the "playoff rondo" myth is dispelled as well.
You know, after watching some highlights of his past big games, I think you are on the money about Rondo being a 'system player' in a sense. Rondo is a regarded as a high IQ player with bad shooting, so having sets run where he knows exactly where to pass, drive, and where he will be taking shoots would allow him to excel as they are tailored to his skill set. This would be far more beneficial to Rondo than more offensively gifted point guards, as he can't just pull up from anywhere and knock a shot down consitently.
I think his game has suffered post injury more so to different coaches (hence different play style which isn't suited to him), and not restablishing a core unit of players to develop chemistry, like how he was succesfull with the big 3. However I don't think he is over-rated or under-rated in the NBA community, overall he is a talented, yet flawed player. It's that simple IMO.
Anyway, TP for opening my eyes to that!