First of all, if you haven't read the essay for which this is titled (or its follow-up), I highly suggest you do so. Stick with it, it's not as much a bash-fest as it might seem at first glance:
The Complex and Terrifying Reality of Star Wars Fandom
Star Wars Fans Hate Star Wars: Special Edition
I could go on and on about this, but I don't have time, so I'll stick to a few quick notes.
First of all, I tend to be pretty forgiving of all the little quirks and inconsistencies in Star Wars. For instance, Vader not recognizing C-3PO? That's like some guy who once tinkered with a Toyota Camry not recognizing the same car 20 years later. (Besides, he's probably the second most powerful man in the galaxy and since he last saw 3PO he has, oh, a few billion deaths on his hands, including his wife and [he thinks] his unborn child. Forgive him for never wanting to go near Tatooine again.) Oh, and Luke and Leia's little romance? As we've seen in the news lately, that's
all too possible.
The contention that Star Wars is not only two separate trilogies, but that those two trilogies "have so little in common that to call them one unbroken saga would be almost paradoxical," is pretty interesting. I disagree. They are very different, yes--for instance, the PT is largely about the galaxy, whereas the OT is mostly about Luke. And whereas the PT takes a very nuanced look at good and evil, the OT makes it refreshingly clear-cut, as was mentioned in many a review of ANH. You might say the PT is a tragedy and the OT is a Western. But all that is not to say that the two pieces of the puzzle don't fit together. They do. Their stylistic differences make them complementary, not contradictory.
But all in all, what Summers says is something every Star Wars fan should consider.