My point was that most pages hopefully will have two levels (like spotify). One to log in and do basic things, and the second level a social one.
So, if you don't do the second part, you should be fine?
Also, I personally would be careful in installing apps. This goes for any application (not just facebook). If you trust an app, go ahead, if not, just avoid it. This is going to be different for different people.
Edit: Ok, I think I see your point. You don't want an app to ask for too many permissions right off the bat and then you having to go back and remove them.
Again, I think this is going to be developer and users driven. The more people ask for apps to start off with minimal permissions the developers will have to comply. Does that make sense?