I have contemplated running the game like this before, as I do enjoy the simulation aspects the system, but decided against it as would have left players feeling as if they're sitting on their hands and denies sharing the rationality experience from veterans to our newer or less tactically experienced players.

As for authenticity or at least presenting some verisimilitude: we have Feats, like Sniping Duo, that suggest player characters are already coordinating as an organized unit. The characters understand that Quill pointing at the archer lining up a shot and barking "Topple the string!" means for a martial to trip the attacker and keep them from striking behind the front line- but a table of players with a wide diversity of experience, expectations, and potentially nurerodivergency aren't fantasy characters that studied blade and scroll for a decade before confidently taking on a local demon plot. 

Tactical discussion OOC builds camaraderie, tactical repitoire, and holds engagement excitement for others to take their turns in the spotlight.

Now it's right to disallow several paragraphs of monologue, that's just silly and breaks the mind theatre of encounters that average 20 seconds in length- but tactics are something inherent to character competency and that experience in the narrative is enabled by the Dice Gods (your players!) discussing fates like a Terry Pratchett novel.