You're right about changing expectations, but it is better. Really. Too many people view boost as a giant cumbersome blob of libraries interconnected in unintuitive ways and refuse to use it, especially if they only need something that they perceive as small and simple.

We've been through the same exact arguments years ago, only then it was about things like std::string. Oh, no, it allocates dynamic memory behind the scenes - there are systems that don't even have heap! As a relic from that era some popular libraries still use their own string classes.