[andyjda]

I'm with you, but I also think that discussion about specific tools often is wrongly prioritized over discussion of general principles. The lesson should be "always profile your programs, and be especially wary of third-party dependencies" rather than "avoid this specific library at all costs."

I'm assuming they also understandably don't want to start a flame war, where their specific criticism of the library is going to be taken to mean "this library is always bad, do not use it, even if its effect on performance is negligible in your case."