[Errancer]

I agree with your description that this is a throat-clearing but I don't see why it hurts the clarity of writing. Dense texts packed with information can often benefit from such breaks. In general I find text which uses artefacts from spoken language more readable. There are limits to this of course but if we remove all redundancy we end up with dry text which sometimes is expected but I am unsure if it is the most readable or clear way to write. One side note is that it might be culture dependent. English speaking countries and Poland, where I am from, expect and teach much different writing style than France or Germany.