They're spreading the FUD that Linux laptop hardware support is frustrating, no questions asked. It's FUD because it's a fear-inducing oversimplification of the current state of things, which is that Linux laptop hardware support is enjoyable -if you do your homework-.
I agree you shouldn't be doing any homework to perform basic tasks such as "get [the] machine to hibernate, connect to wifi reliably, etc...". I'm not doing any of it on my Thinkpad, where these tasks work without messing around.
And in an ideal world, yes, I'd love not having to ever think about it too :) . But in the current Windows-dominated non-Mac consumer hardware world, what I say is that you should be doing homework prior to buying a machine you expect to install Linux on.