Her job is to push the line without lying in the most obvious way.Her actual job is to push the line to take from the boss, not be an arbiter of the truth. If it is lies, then it's her job to push them and make them as plausible as possible. I don't know quite what else people are expecting - it's essentially a PR role, not a quality assurance or fact checking one.
When she does lie, she will get criticised. Can't see how anyone has any problem with that.
