I understand that it's a method that ascribes purposes to things. I have heard people speak very highly and lowly of it. On the one hand people say it has greater explanatory power than cause and effect. On the other, it assumes purpose in a meaningless universe. So which is it? Is it a good framework?
It's a good framework if you assume thete is a demiurge. Theology don't really questions the existence of a god creator of universe, but uses this existence as foundation to all further thinking.
So, if you believe in a god is one of the best ways to understand the world, but if you don't, or don't know, it's useless.
Question is about teleology, not theology.