It's meant to compete with the junky little thing you get with your PC that's wired, with who-knows-what DPI and 3 buttons at best. It's meant to be something that slips into your laptop bag and doesn't add *any* more bulk than the laptop itself.
So, editorialized, "of course" he's not going to be using an entry level mouse for power user usage.
That doesn't change the reality of how good or bad Apple's mouse is because it's not being sold to a power user. From what I've seen, power users tend to use that magic track pad thing, if they're Apple power users using Apple things.