Before I read your comment I thought you were referring to blurring in general, then I read the article and... Yeah, it's not worth it for software that needs to be maintained, for a fun hobby project sure do whatever
Yeah, definitely do add those 2 extra properties to make your site look nice, but don't overwork the DOM just because the native CSS blur isn't perfect enough. Guaranteed 0.01% of people would even register this change.
I'd rather open a bug report and hope for the best in this case.
