When something is very easy to use the directions are often very short. When it's also almost foolproof, they will not need to tell you anything more than the short directions.

It's pretty good stuff.

But since most of us learn by doing, remember that if you have problems with this stuff, you probably are doing it wrong. Reread the skimpy instructions and then do it that way. And lots of things in our hobby require us to learn the technique that works for us.