I think the problem is that the current nature of Bitcoin and its community is so silly, and so far from what it was intended to be, that it blinds people to its real potential. It is a good implementation of digital cash which could solve the problems that digital cash intends to solve, if it sorts out a few of its issues (computational inefficiency, latency, storage ineffiency).

TLDR: Bitcoin is a clever and nearly-adequate solution to the problem it meant to solve, which is being drastically misused, and yet that doesn't reflect on Bitcoin itself (any more than tulip mania reflected on the merits of tulips).