The part about using screenshots is silly. Like posting screenshots is a copyrights violation?
The use of a similar "seal of quality" is sketchy though, I'll give Nintendo that.
Not to start a decade-old console war but... The more-or-less equivalent Kickstarter for a Genesis/Megadrive book wasn't shut down by Sega. Either they got their copyright stuff sorted out properly* and these guys didn't, or... Sega does what Nintendon't? (Or Sega doesn't what Nintendoes, I should say... xD)
Edit: I just re-read part of the Genesis KS campaign pitch and they mentioned they were "working closely with Sega" on it and Sega even provided assets. I guess this NES book wasn't like that at all, then?
Posting screenshots, no. Selling them? Yes.