Do yourself a favor and read both Liz´s and Sergio´s articles to get a more balanced view of this - really complex - issue.
[1] https://www.opendemocracy.net/sergio-casesmeiro/deconstructi...
I'm not saying that the op's article is not biased, nor that there's nothing more about this issue than just "poor oppressed Catalans", but I don't find your referred article "more balanced" by any means. It just uses a different rhetoric.
Note that I am with Catalonians when they ask for more money from the central goverment; they deserve it. It is this independentism thing that I find artificial and terribly unfair with the rest of the country.