There are many things which are simply factually incorrect. However as 'not being able to mean "nevertheless" when at the beginning of a main clause' is utter f

There are many things which are simply factually incorrect. However as 'not being able to mean "nevertheless" when at the beginning of a main clause' is utter fabricated balderdash. It has been able to be used like this for at least a few hundred years in English, and you can find examples of this use from Shakespeare and Burke and so on. And it's not as if Strunk & White couldn't have checked on this in 1918, such examples are given in the OED's 1899 edition. And this is not an explanation: "Many of the words and expressions here listed are not so much bad English as bad style, the commonplaces of careless writing. As illustrated under Feature, the proper correction is likely to be not the replacement of one word or set of words by another, but the replacement of vague generality by definite statement." What justification do they give for what they consider 'bad style' or 'careless writing'? I do wish they could have followed their own recommendations, especially as concerns the last clause, for this is nothing but vague generality, and a mistaken one at that.