I can't read the post that well, but I think they were trying for an analogy. I could be wrong, though. Let me try to make sense of it:
Chipotle employs unethical practices when hiring. Most chipotles across the country have at least two illegal immigrants employed. Broadway keeps letting these guys come back when they really suck, in the opinions of critics and the majority of audiences, because it's quick cash in the bank (at least in Webber's case, most of the time).
If we want to see the economy improve, we can't afford to "heart" chipotle. If you make a martini mix, piss in it, and serve it to people, and they love it, there's still piss in the martini. I think what he's trying to say is that mixing crap with crap isn't going to produce a diamond.
(And I say all this only in trying to make sense of that post; I'm a fan of Webber and Wildhorn. [Yeah, yeah, yeah, bite me.])
"There is no problem so big that it cannot be run away from."
~ Charles M. Schulz