Has anyone got a link to a video of the actual talk?
No, you haven't explained perfectly why. And yes, they work much better because there is no extra gulp wrapper around them. If you are happy with gulp good for you, but it's mostly unnecessary.
No, it's not that simple if you want to copy certain files from A to B and C, other files from A to D etc
I really don't see why I should be spawning servers or shell scripts etc from within gulp when it works much better just running them directly.
Gulp is only suited to problems which can be represented as streams. Certain things, like copying files from a dir to another, firing up mock server, etc, are a pain in the neck with gulp. I moved from gulp to npm scripts and never looked back.
We made our own https://www.npmjs.com/package/eslint-config-pv
Hasn't the main developer behind this library been hired by FB to work on React? And what does that mean for this library?