From a philosophical perspective, I think democracy needs to be clear, transparent and understandable, those rules are anything but, not to mention that they favor those who better lawyer them up, which is not what I think we should encourage.
From a practical perspective, filibuster can only be used to stop legislation, so in the long run, they tend to favor conservatives (who in the grand scheme of things want to keep things the way they are), so as a progressive I oppose them.
Also, being on the losing side of such effort tend to erode people trust and belief in democracy, which is a bad thing.
I think there are better ways to protect the rights of the minority (in broad storkes, I think this is what a constitution should do).