Rrius doth protest too much.  More significantly, Rrius fails to engage with Shakehandsman's excellent point that "Ginger Rodent" should be seen in the context of Harman's career, persona and behaviour.  Someone as publicly wedded as she appears to be to appropriately neutral language (when used by others), but who nonetheless publicly delivers the ginger rodent quip, is capable as being seen as hypocritical, or as having poor judgment.  There is other material in the article which might be regarded as evidence for either of these conclusions, and "Ginger Rodent" fits in with it.  That it might be less significant for another politician is hardly the point.