I agree with you. There are evolutionary traits in language that will not and should not change. Good recent examples are the fact that split inifitives are no longer the bugbears that they once were. Nor are trailing prepositions, although I personally try to avoid prepositions with no objects wherever possible. And the subjunctive case is all but gone in English because it's simply no longer used. All of these are perfectly valid forms of linguistic evolution. But deliberately changing the pronunciation of a word (or deliberately changing anything, except introducing a new word), IMHO, is no more valid than Free Speling.