Some asshole at the Guardian who has never read one of Terry Pratchett's novels thinks Terry Pratchett is overrated. Yep, it's the same old boring "serious literature" conversation, with an added smear on a recently deceased author for good measure.
This is an obvious plea for attention, and you should ignore it. Go read a Terry Pratchett novel instead; if you're unfamiliar with his work, we recommend Mort or The Colour of Magic to get you started. If you think you really must read this asshole's incendiary comments, follow this Do Not Link link to the story to find out exactly how dumb it really is. But really, the correct response to dumb pieces like this is to ignore them. That's the only way that sites will stop running dumb clickbait. They're literally profiting off your outrage.