Boghossian never says anything about 'revealing the truth' in that block of text, he merely expresses concern about what's being taught in the university classroom. Please do not misquote people like that.
"Inform the public of what is going on in university classrooms and in what counts these days as academic scholarship" seems to me to be reasonably paraphrased as "revealing the truth". True, the latter phrase has a bit more of an edge to it, but the idea is similar enough that I'd say Boghossian did in fact say, not those words, but that idea.