Yea that's a good point about just how much better (and...different) Kripkes work is than that which has been produced by the publish or perish academic system in philosophy. As far as I can tell it's been utterly counter-productive.
In Kripkes favor I would also add that he was a great stylist, with warmth and humor and...flexibility of presentation. And that partly because of this NN and WRPL are perfect introductory philosophy texts for "generally educated" people. If I taught philosophy instead of working in tech, I'd probably help keep Kripkes legacy alive for that reason alone!