They all come with an extension cable if you don't want that.

The problem isn't for me personally - I don't own any Macs. The issue is other people who have Macs and plug them into wall outlets in public places and cover up other slots. And I've never seen anyone carrying around an extension cable.

Because the cords are ridiculously fat, more than other manufacturers'. They shouldn't block anything, just turn them upside down if needed.

Unless they are in the middle of a power slot, taking up another plug no matter which way they turn. The alternative is unplugging everyone's gear from the strip so the Mac user can get an end-plug.

And god forbid if there are two Macs plugged into the same strip...