Modern doesn't mean "in use". I haven't seen much more than proof of concepts and demos when it comes to those technologies. Feel free to point out real-world uses if there are any that could benefit me.
I doubt the Chromebook was ever designed for people like us. We demand far more from our technology and multitask in ways the average user simply doesn't. My Android tablet is nice, but I can't even open up 10+ new tabs at once on a whim and let them all load in the background without it dying.
And forget having them all loaded where I left them when I next return to Chrome.