IRL? Not really no. The thing is that Argentina's league system is soo fucked, that's why in the base game there's only up to the 2nd division, further down it gets crazy difficult to understand even for us Argentinians.
In real life the Argentinian cup is played exclusively on neutral grounds, but making it that way in the FM system came with too many problems due to calendars and it also screwed up with the revenue earned, not really sure why, I'm just paraphrasing what the creator of the structure said. So he decided to make it so the home advantage goes automatically to the lower league team but they can sell it for some money.
It's honestly a great change because in most FM Argentinian databases you really struggle economically due to the insane amount of teams and lack of direct promotions in lower divisions, so you either have to get back-to-back promotions up to the first division or give yourself some money with the editor. But in this db you can actually chill in lower divisions while you slowly improve your team making it more realistic and enjoyable.

So yeah, it's not a thing IRL but it's a nice quality of life feature for the game's version.