Not always so. It *can* be annoying to look for them.
If they're mixed up in the wikitext, then I can't see any way to edit just them. It's best just to put them all at the bottom, and then loading the last section works fine.
If someone does have a go at implementing a feature like this, though, they should try and get it to do categories as well. If you can do one, it should be easy to do the other.