It seems that she uses platitudes when talking to ordinary people too and isn't too hot in the politeness stakes. Here's an account by an Australian woman, who has been living in the UK for 18 years and voted for Theresa May and for Remain, about her meeting with her.
m.facebook.com/story.php?story_fbid=4165...p;id=123798281312883
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She emphasised, not just strongly but crossly, that "the British people have voted for Brexit and the government is committed to making it happen" and started pointing at my face across the narrow desk. I asked her to please not point at my face as I considered it rude. "People point at me all the time", she replied. "Indeed," I responded, "it's rude, so please refrain". …
She said "We're going to get the best deal". I said "That's a hope, not an action"."