In a vacuum, having another intensifier is a good thing even if it's very similar to existing intensifiers. My point was that getting another marginally useful intensifier at the expensive of a very useful clarifier makes the language less net poorer.

In other words, "literally" meaning "figuratively" means it can no longer be unambiguously used to mean "not figuratively". The latter function is more useful than the former because there are lots of existing words for the former and only a few for the latter.