They are.

I also really loved my Air 11". A lot of tech friends who were on call would carry them in large jacket pockets. I remember someone pulling one out at a restaurant in Valencia St in SF because pager duty went off.

MacBook 12 was a worthy upgrade on size to get the retina screen. Air 13" is just a laptop at this point.

I went from the 12" Macbook to the 13" Macbook Air. It's noticeably bigger and heavier, especially if you're backpacking or bikepacking.

On the other hand, the new Macbooks... wow.