I don't think anyone was saying it was difficult to figure out the reservation system... just that the system is not as easy to deal with as in other places. As others have said... it's difficult to make a spontaneous trip to Baxter and be sure you're going to get a spot if you want to camp in the park.
As an example, I'll point to a Baxter trip I'm planning. I had 12 people interested in attending four months ago when I had to reserve campsites. During the interim, 10 people dropped out of the trip... due to schedule conflicts and other very legitimate issues. It is really difficult to commit to a trip four months in advance at a place that doesn't have a cancellation period at all, especially if you're talking about just a weekend or instead of a weeklong vacation type trip.
For the record, I don't mean to pick on Baxter... I have been to the park many times and love it there. But I don't think I'm typical when it comes to this stuff either and I'm willing to commit to things a crazy amount of time in advance.
I haven't been to Acadia, so I can't make any comments about the other park mentioned in the article.
- Ivy