What you describe is the difference between tedious and simple.

Boring is good. I don't want to be excited by technology, i want to be bored in the sense that it's simple and out of my way.

Same for KISS. I tend to tell people to not only keep things simple, but boring even. Some new code i need to read and fix or extend? I want to be bored. Bored means it's obvious and simple.

The difference? There are many complex libraries. By definition they are not simple technology.

For example a crypto library. Probably one of the most complex tasks. I would consider it a good library if it's boring to use/extend/read.