You should totally judge a book by its cover- but you shouldn't judge the quality of the writing by the quality of its packaging- they're made by two very different people/groups and the former often don't consult much with the latter.
I really enjoyed the slow slightly pompous tone combined with the sarcasm and withering vitriol. This is exactly like a well respected art critic might savage a work by a blind four year old. It amuses me because counter-arguments are irrelevant, no matter how prescient. The critic has decided to hate the work and will demonstrate exactly why poo on a stick would be more fitting. Some of the criticisms are throwaway or unfair, some do not 'respect the medium' (e.g. breadbin remark) and some are surreal (Chicken Tonight) but that doesn't matter- the master has spoken and the work has been judged.
Of course at the same time this is only improved by the fact a lot of the criticisms are totally valid and well thought through.
My only criticism would be the delivery of the final joke about all-consuming. It was a good way of rounding everything off, but the delivery didn't quite work. I think it would have been funnier if it had been more self-aware. As in Of course if the city is worried about the all consuming terror, I would recommend they, ah ha, look at the box cover. Particularly, ah ha, at the gentleman who has an entire town in his anus.
It's like a slow, deliberate observational joke, made by all the best academics who think they're funny, but really just want to show off to all their learned friends.* Of course in this case the joke is just dumb!
*Such as; Of course every physicist knows a kitten is more likely to fall from a roof than a cat- it has a much smaller µ