I don't think they're saying that if you get up in the morning you're an idiot, but it does feel a bit as if this article commends laziness, so um, I partially agree with you :P
The Bright Side have done " it's good waking up early" and " it's good waking up late" just for everyone be happy and not get mad with. bright side wants everyone happy. don't you see a bunch of contradictions in this site
all those who get up early are dumb fools?