Argentinian here; yeah it's bullshit, also there's no single "Argentina spanish" or "Spain spanish", Andalusian is very different from Madrilean etc.
I have to say though that Chilean spanish is commonly considered quite hard to understand, they speak really fast with lots of mannerisms and "can't understand a single thing of a Chilean speaking" is a common meme in Argentina at the very least.
I have to say though that Chilean spanish is commonly considered quite hard to understand, they speak really fast with lots of mannerisms and "can't understand a single thing of a Chilean speaking" is a common meme in Argentina at the very least.