Il est tout à fait regrettable d'oublier non seulement la répétition comme outil de communication mais aussi de l'employer de travers à des heures de grande écoute.
I agree that repetition for emphasis is an innovation of modern French though. English for instance would never ever do something like that. That would be completely, entirely, absolutely preposterous. I myself wouldn't stand for it.
https://en.wikipedia.org/wiki/Irregardless
Or one that absolutely drives me nuts:
"A great rate of speed"
Which is a journalist way to say "I failed high school physics, but I'm still going to try to sound smart".
https://en.wiktionary.org/wiki/past_exonerative
In which journalists use the passive voice to excuse, e.g., police shootings. "The victim was shot and killed in an officer-involved shooting." Rather than: "the officer shot and killed the victim."
https://www.washingtonpost.com/news/the-watch/wp/2014/07/14/...
https://www.nytimes.com/2007/03/14/washington/14mistakes.htm...
really threw me off when learning French. I went from the mostly benign and spelling-only prescriptivism of Spanish to the complete and utter anarchy that is English to this weird situation French is in where it's the worst of both worlds: it has all of the rules and all of the exceptions.
In some situations following all of the rules ('course a pied' over 'running' type stuff) will make you positively odd, and in others ignoring some specific rules makes you sound uncultured.
I dislike "Au jour d'aujourd'hui" because of the redundancy. There are shorter and more elegant ways to say the exact same thing. I don't know if we can talk about prescriptivism in that case. It just gives a negative impression on the author (like when you see an anti-pattern in computer code).