The argument isn't about ChromeOS alone, it's about ChromeOS on a $1300 laptop. Doesn't make sense to most people.
Chromebooks at $200 or $300 seems like a good option. At $1300, it's dumb.
See quotes below, these are specifically referring to ChromeOS:
Chrome OS is just so not worth it at this time.
Pointless OS with good hardware and bad price point just doesn't sell in 2013.
The weakest thing about it is the OS.
I've already said that I agree with the notion of spending $1,300 on a Pixel. Then again, I wouldn't spend $1,300 on any personal laptop - so maybe I'm a bad comparison.