Once again, you’ve answered the question that no one asked.
I couldn’t find any rule against that in the CR rules.
No one disputes the importance of pronouncing words correctly during davening.
Actually at least 3 different posters above downplayed that mispronouncing words in tefila was much of a big deal.
Please provide the source to that or retract.
Even if I can’t find the source doesn’t make the source go away or the point any less real because one person in America forgot where the source is.