Why do people call natural forces 'blind'?

Creationists like to call Evolution a blind process, I guess in a derogatory manner designed to contrast it to their so called intelligent agent. The use of the term is not restricted to origins debates though, it seems whenever people think that scientific laws cannot solely be responsible for a particular phenomena they call said laws ‘blind’.

How does this reflect on our collective perception? To my way of thinking, blind scientific laws are a far more credible proposition than imagining a conscious entity to cause a phenomenon. Do people really place more value on the idea of a homunculus than natural law?

I really don’t want this discussion to revolve around creation vs. evolution, that is just a convenient example. Thanks.