I'm sort of in the middle on the article. The chicken of the woods pictured is clearly old and woody -- you wouldn't want to pick it. Small amanitas can look like puffballs, so you cut them in half if you're unsure. And the article is not a complete guide -- you'd need a little bit of supplementary info (in my opinion) to correctly nail the oysters and the king bolete, but:
Even if someone just used these pictures and description as a guide, they're not going to die -- barring some kind of freak reaction, the worst that'll happen is they'll get it a (rare) tummyache. It has happened to me maybe twice in my 10 years of foraging and it was hardly the riskiest thing I've done with my body.
That's what the article means by "safest". They're not saying "perfectly safe" but "if you're going to start, start with these, the risk is the lowest." I think you're kind of overreacting.
Then again, I could be underestimating the incompetence of the average person.
About me: I pick and eat mushrooms all the time all over the world, and sometimes sell them to restaurants.