Gadol….im surprised at the lack of awareness of basic halacha.
Shulchan aruch is full of examples of how mispronunciation can be assur. You need to make a distinction between vechara Aff hashem, lest it sound like vecharaf hashem, which would be a curse chas veshalom.
Of course Hashem “knows what we mean”, but davening is for US and affects US if we do it wrong.
Does davening for a choleh with his mother’s name also bother you? Have you only now started philosophically pondering the omnipotence of hashem?