Isn't this the same libel that that has been used to punish journalists who write about inconvenient truths? It seems hypocritical to stoop to that level.
What she said could be grounds for a libel suit in the US as well. The real difference is in the defense that she could mount.
Why should journalists abstain from defending themselves from libel in the UK just because others abuse those laws to attack journalists? Suggesting that journalists should not defend themselves from libel just because others abuse libel laws to shut down journalists is damn near concern trolling.
Exactly, bad law is bad law and if you like free speech you should like it regardless who is speaking.
Personally I don't see this going anywhere near court. Guido may have some fun here but he's a political journalist with a Conservative leaning, he isn't going to start seriously threatening an Conservative MP. He'll milk the publicity, wring a minor apology out of her and it'll go no further than that.
Sure that particular law has been used that, since it's England's Libel law. However what she did was libel, and would be considered libel in basically every country with a libel law.