During our last meeting we all seemed to agree on that defining/implementing order for style-sheets is imports is super hard (if possible) and will bring more pain than it's worth for the web (aka. let's not make an already over-complicated system twice as complicated for very little benefits). And the consensus was that we should just not allow global styles in imports.
Some months has passed but I still don't see any update on the spec. in this regard, so I'm just double checking that we still planning to do this or if anything changed since then. - Gabor