> Sorry, but what does one have to do with the other?

Let me spell it out for you:

Daring Fireball has a really ugly website. On that really ugly website, they are criticizing Apple's ugly icons. This is ironic.

> Are you one of those people who think you can’t criticize a movie unless you’re a director yourself?

No.

Alright, then my analogy holds.

He can’t criticize Apple unless he first makes a really pretty website.

You can’t criticize the movie unless you first direct a better one.