If you strip away the appeals to emotion, their point seems flimsier in isolation: "Non-European philosophical traditions offer distinctive solutions to problems discussed within European and American philosophy, raise or frame problems not addressed in the American and European tradition, or emphasize and discuss more deeply philosophical problems that are marginalized in Anglo-European philosophy."
This is on the surface, reasonable. But why don't we try reversing the names, which should be allowed under their pretense of fairness and equality, like so: "European philosophical traditions offer distinctive solutions to problems discussed within Non-European philosophy, raise or frame problems not addressed in the Non-European traditions, or emphasize and discuss more deeply philosophical problems that are marginalized in Non-European philosophy."
Now it sounds at best sloppy (Which non-European traditions?), and at worst chauvinistic against the background noise that makes up the bulk of what really drives their point, which is the "apologize for imperialism" theme. So at one level below the surface, they are suggesting we abandon evaluating ideas based on their relevance to us as westerners, and subordinate that principle to saying sorry for imperialism. At two levels below, they are just talking their own book, as white male professors of Chinese philosophy.