Ah, the words we use. David isn't really paranoid, or even paranoid. He's rightly cautious. Some of you are posting as if no one has ever poked a trekking pole through their shelter, when we all know people have.
At the end of a very long day of hard backpacking in cool or cold weather (which seems to be the kind of backpacking David often does), you're not necessarily at your sharpest when setting up your shelter. You're tired, perhaps hungry and probably a bit chilly. You just want to get the shelter up. It's easy to slip up under such conditions. So David's CONCERN is a valid one, especially for him.
@David: I'm not sure you could set up the poles/ridge pole ahead of time outside the shelter. The pole handles go deeply into each side of the floor, you'd need to be able to bend the poles to actually get them in the door if they were set firmly in the ridge pole - and no pole you'd want to use would bend that much. If you set the pole tips loosely into the ridge pole to you could 'sway' the poles before setting the handles in place, then you'd, of course, always run the risk that one of the tips falls out while you're maneuvering it into place. You could, perhaps, put the handles into place and tips into the ridge pole while it's laying down inside the shelter, and then raise it into position (I've never tried it, but it seems feasible), but you're still 'putting it together' in the shelter instead of out, just with less chance of poking a hole in the shelter.
I'll add that as much as I love my Lighttrek 4 poles, I don't like using them in combination with my Lightheart (though I do). When you extend them all the way to get a tight pitch in the tent, you then have to twist them to lock them, which means twisting the handle against the floor until they're tight. I do it, but have often considered some Black Diamond flick-lock poles, or just getting some separate carbon poles specifically for the Lightheart and carrying those, regardless of whether or not I'm also carrying poles. It's not that it's terribly difficult (as I'm expecting the "I do it all the time with my GG poles, it's so easy I can't believe you have problems! responses), but I personally don't like that particular aspect of MY setup. I do, however, absolutely love the shelter, as I've said before, and it's still my favorite ground shelter for the cool to warm months.