I wouldn't say Plinkett's reviews are nitpicking. Just the opposite really, I remember when I first read about it on some blog I thought "great, someone made a 70 minute video of how much Jar Jar sucks" but I was pleasantly surprised when I actually watched them.
He hardly mentions Jar Jar, doesn't even mention the Pod Race Announcer, which has to be one of the most annoying characters ever put to film. Instead he talks about the big things, a boring plot that makes no sense, lack of interesting and well developed characters, lack of urgency, enemies that offer no threat, etc. Besides being funny I found them to be very inteligent for the most part.