While not a medical show, Criminal Minds a at least used to use a similar thing, especially to demonstrate how Reed was analysing things.
I think it to be a good way of showing things on TV as having the actor stare on to a whiteboard for 20-30 seconds and then going “I got it” wouldn’t really make good TV. The alternative would be the character coming up with the solution after just a quick glance and that also wouldn’t make good TV.
And this isn’t even mentioning being stuck in an expensive theatre for 3 hours, that the show in its full is perfectly bingeable over a weekend and that there is a high likelihood that it might get cancelled midway through, which will really sting with a 4 episode mini series.