I'm not sure what the author's argument is here. Is me reversing simply a nuisance and waste of Oracle's time? Is Oracle trying to obtain security via contractual obscurity? I see lots of comments here proposing that Oracle is protecting its IP, but I don't see evidence for that in the article (maybe its elsewhere, though).
I wonder if Oracle would send one of those reminders to a customer who analyzed an attack by an attacker who "broke the license agreement" by reversing the customer's copy of some Oracle software.