Mmm... use of the word "nightmare" to criticise something that's discussing the dark ages, where the critique is about just that kind of skill level, but then you go on to present a junior grade summary. Deep troll or accidental writing ability? Too close to call.
But that illuminates a fundmental part of the problem here. To many on both sides of the page, much writing is also a game, to be played by the reader and the author. It's meant to be fun, but if one doesn't realise it's a game to be played and that the game is itself another layer of meaning, one will simply end up getting annoyed, wondering why the author didn't just present a plain list of unadorned facts.
By all means, don't play the game if you don't want to, or critique the game as one plays - point out literary shots that didn't get over the line, or cross-language allusions that are playing a bit fast and loose with etymology.
But to see the game being played and tell people to stop playing it? That's not right.