But languages naturally do 'weaken' over the decades and centuries, in that strong verbs and strong plurals tend to normalise. Thus 'dived' replaces 'dove' (even though 'dove' is retained in American). And I've heard 'mice' being replaced by 'mouses'. And as I mentioned above, 'thrice' became 'three times' a very long time ago.
I don't like it myself, but it isn't all bad. Let's face it, losing most of our old complicated Germanic plurals and replacing them with a simple 's' has simplified our grammar. I do appreciate this simplification, because German is my second language, and its grammar is dreadfully complicated. I only cope because I lived in Austria a while as a young woman, and polished my skill through total immersion in the language.
We will all find some linguistic changes to be intolerable: my favourite hates are saying 'I' when 'me' is correct, and saying 'less' when 'fewer' is correct.
As for business and corporate language;much of it makes me want to scream and run!!