I think the rage is a bit over the top. I expected James Rolfe quotes... "Scrum is buffalo diarrhea!"
I don't mind the blowback against Agile, it and TDD have both entered cargo cult territory and a lot of the stricter implementations are just laughably naive and ineffective (Especially if there is a "Certified Scrum Master" involved). But to just say Agile and all the modern processes are bad is ridiculous.
It may be time to start having a discussion about what's next in software development wether that be Agile the next generation or something new. Channel the rage!