:::: "Academic exclusionism" my ass.  
 :::: Wikipedia purports to be an encyclopedia. An encyclopedia primarily deals with the facts, so far as they can be ascertained. Until a few weeks ago, this article was a messy, mediocre, but  aside from routine minor racist vandalism  fairly stable description of AAVE that didn't linger over the most ignorant "points of view". Along came an editor keen to align the article to his own ignorance, quoting "notable" stupid comments. Not surprisingly, this attempt to turn one corner of an encyclopedia into a dictionary of received ideas was unpopular with other editors. He applied for "mediation", an idea to which the others agreed. (I later regretted having done this.) You, the mediator, turned out to be pretty much a Pécuchet to his Bouvard, brushing aside the fruit of three decades of rigorous study (against which there appears to be no objection other than soundbites by talking heads and "commentators") as a mere "minority opinion". Recently you seem to have moved away from this position and I'm delighted to note the change. But you need to go further. 
 :::: Please understand this. AAVE detractors are not merely ignorant of such lah-di-dah matters as "IPA and phonological analysis", they're ignorant of grammar and history. They're ignorant of language as a whole. They're too lazy to open a book, read up on the subject, and digest what they've read. Or (as Cosby's career suggests that he is no fool) they are feigning ignorance for commercial gain or some other payoff. 
 :::: The article now specifies three critics. One predates rigorous studies into AAVE, and its ignorance about language is thus excusable. One is some nincompoop called Govero (utterly unnotable by any standard), who seems to think that AAVE is akin to aphasia and/or linguistic vandalism. One is Cosby, who equates a language with feces. Tellingly, both of the latter wring the same puny joke out of some imagined misunderstanding as "axe" of a metathetic version of "ask". They're all worthless, each in a different way. They can all be excluded, or they can all be exposed for the ignoramuses that they are.