I think you're underestimating how important "just a pain in the ass to work with" may be.

An analogy would be Hansard and theyworkforyou.com. The government always made Hansard (record of parliamentary debates) available. But theyworkforyou cleaned the data, and made it searchable with useful APIs so you could find how your MP voted. This work was very important for making parliament accessible; IIRC, the guys behind it were impressive enough that they eventually were brought in to improve gov.uk.