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.