I think their point was that it's a bad ride - not that they wanted a place to take a break. When you get around to seeing it, you will agree.I think that is one of the worst ways, and keep in mind I haven't ridden it nor am I disagreeing with you - just making a point, to describe a ride: "It's a great place to take a nap/break in the A/C and get out of the hot Summer sun!"
To illustrate this:
People ride this ride because it's a great ride. Yeah, it may get them out of the heat and into the A/C but, mostly, they're riding it, even repeat riders (especially repeat riders) because: The Haunted Mansion is awesome!
Ellen's Universe of Energy (granted, closed now but for contrast): Your first time visitors to WDW are probably staying awake on this ride and trying to take it in. Repeat visitors see it, I'd argue mostly, as a place where they can take a break, cool off from the Summer heat, and maybe sneak in a nap. That speaks volumes about that ride.
When your ride is no more interesting than an air conditioned warehouse with cots and a 45min countdown timer you have a problem - a huge one. I really can't think of another attraction at another, non-Disney, park where people openly talk about getting out of the heat and sneaking a nap in.
Almost as bad: American Adventure. I like American Adventure. I actually don't go into it seeking A/C and a nap but, man, that attraction will lull me to sleep every time.
Does anyone really go in an attraction solely to take a break??