Sometimes these things are peeves. I have a peeve about using "they" as a gender-neutral singular pronoun, but admit it doesn't have much effect on expressiveness.
In general, though, I feel that the more precisely we use language, the more expressive it can be. Begging the question is different from raising the question. If we allow that conflation, it then becomes more difficult or requires more words to express what "begging the question" really is.