The context: A bunch of coworkers and I had lunch yesterday, let's call one of them E and one of them C. I know E and C have been acquainted for a long time, but I did not see them speak to each other at the lunch.
Today, I was speaking one-on-one with E and asked her "Have you spoken to C recently?". E's response was "I met her yesterday", in reference to the lunch.
As a native speaker, I feel like this is incorrect, but I do not have a way to explain to her why it is incorrect (she is non-native).
We had been talking about C's speech patterns, so I was asking whether she has paid attention to the way C speaks recently. E's response was sarcastic, but the sentence "I met her yesterday" in that context still seems awkward to me.
My best guess is that it's only weird because we were all at the lunch together, and it might make more sense to say "I met her yesterday" if perhaps I was not at the same lunch with them.
Am I correct in thinking that this usage is incorrect? If so, what's the reason?