That's funny. Just goes to show how dynamic and varied people can be. In my case, I'm more of the planner than my wife (a clear cut P), but I find it is often her cramming too many things in limited time frames to the point that it's stressful and no fun anymore. I think it is happening for different reasons than in your experience, though. She just wants to cram a lot of fun activities in but doesn't always stop to think of how it will all fit into a limited time frame, so as a result I am the one who will ask, "how are we going to have time to do all of this...consider x amount of time to drive here, x number of minutes to do this, etc"
Which is funny because usually I take a backseat and give her more control over family plans, but when I see people planning poorly, I can't help but want to jump in and take the reigns...I think it just makes me look like a stick-in-the-mud or a control freak, however, so I try to avoid doing it. I come off as this laid back, anything goes type happy to let others plan events but inside I am cringing when I see people doing a shit job of scheduling events. It's really not that hard. Also the fact that I was raised by anal-as-fuck parents who had to plan every goddamn detail of every event really kind of led me to consciously avoid being like them.
That turned into an off-topic rant about myself. Sorry about that.