Date apologizes in advance for possibly laughing at my speech

Hi everyone, I’d like to share something that has made me quite annoyed recently, and I’d like to hear what you think.

Met a girl online with whom I’m going on a date with soon. Yesterday she sent me a voice message explaining how I shouldn’t take it in the wrong way if she laughs at my speech by accident, with no ill intention at any given moment.

Now, I usually don’t get upset at things related with my speech and other people’s opinion but that comment just seems extremely out of place to me; why would you say that? Would she say the same to a person with difficulties walking, or any other disability?

I don’t know if I’m being overly dramatic, but I was already a bit nervous about going out with her and her comment made it slightly worse.