That's true, but not particularly meaningful, since any statement from any person or company could be a lie regardless of how specific it is.

The company's claim that they will pursue legal action against false accusations should not discourage people from making true accusations, because the statement provides absolutely no information about what the company intends to do with true accusations. An analogy would be the statement "we will pursue legal action against anyone who trespasses on company property." That shouldn't discourage employees from going into their offices.