Maybe we should start calling this something besides inline styles, because of the huge negative connotation it carries. It's more like component-ized styles or something. This is a pretty interesting concept though. I've noticed that in really large and interactive web apps sass becomes super unwieldy, and many styles just aren't re-usable.
Sure that's the final result, but like mmatants said, it's the opposite of how inline styles were used back in the day. They were static then, and repetitive, the idea here is to programmatically create inline styles for web pages that have become increasingly dynamic and complex.
I think what vlunkr is trying to say is that perhaps we shouldn't be as contemptuous of inline style information as the design community has been over the past 10 years.
And great point - these new inline/generated styles are the opposite of what they meant 10 years ago (copy-pasta hacks). Now they are even more powerful than regular CSS, instead.
Easier, maybe. But they're actually less powerful; inline styles support a strict subset of what regular CSS supports. (eg, no support for pseudo elements, as others have mentioned)