Except that it isn't. He's a decent enough writer. No better, no worse than any of the other codex writers. The Matt Ward haters are butthurt over what amounts to about 4 pages out of 400 pages of codex. That's 1%. Not to mention his army books provide multiple viable army builds. I'll take it any day of the week.
The necron dex is great. The crons barely had any fluff previously, and now they have a fun, diverse army book that provides them with a Ton of character and, again, multiple viable army builds.
Also. If you're claiming that all dudes interested in 40k are on the same level of Nerdiness, you're incredibly naive. It's like that whole girls and the feel better friend. If you don't know who the feel better friend is, it's you. If you think all dudes playing 40k are as nerdy as you, you're probably on the SUPER nerdy, I never played sports, girls make me nervous side of the nerd kingdom. It's just how it is.