I do remember I once saw a videoclip of a person recalling her memories from 2001, and she said "I thought this was going to be it, that the revolution would come and everybody would be expropiated". So despite the almost impossibility, I can see where you're coming from.
2001 was really a revolutionary moment, and I'm sure there are a lot of interesting PODs that could be done in and around the period (I often find myself learning new things about it, and I lived through it) but a communist revolution, at least as one understands it, is a highly, highly implausible outcome in any Argentina where Peronism exists as a major force.
It is an fact, regardless of how you might feel about it, that Peronism in Argentina has the biggest support from the working class and the underemployed (the Proletariat, if you will) and a good portion of the middle and intelectual class, and that no leftist movement in Argentina has ever had that like Peronism. And not only that, but it is also the most powerful and influential political party/system in the country, so even after the utter chaos of 2001 it was able to keep power in the country. There was no way that the trotskyst parties, or any other left party in Argentina would have commanded such power to begin a revolution, and in fact would be viewed even more as a joke if they had attempted (or a menace, probably both)
Yes, of course the Kircherism that came to power after 2003 had leftist sympathies and to an extent policies. It's not implausible that a more radical Néstor Kirchner or Cristina (could have there been other similar figures? I'm not sure) would take the country on a more "Bolivarian" path. But no matter how the right here likes to complain and redscare, there was not a single point in Argentina's recent history where we have ever even been close to anything remotely resembling communism (the ideal or the Evil version), no, not even a Venezuela-like situation. Kirchnerism is indeed a "left" leaning movement and it had (has) a lot of failures, but it never sought to fundamentally revolutionize the country, just to implement a more "pink" capitalism with more distributionism and "social justice" , developmentism if you will. Wethever they succeeded or not is a debate for Chat*, but the fact is that they never even became close to a communist or socialist revolution, and they would have most probably failed if they tried: for one, a good part of Peronism is conservative in many areas and would have not supported such a move; for two, even if they had commanded the support of the people, their policies would have been catastrophic and Argentines are, if nothing else, a very militant people; you would see 2001 all over again.
The closest thing we ever had to taking the means of production was nationalizing YPF, and we're still paying the owners and their stupid lawyer fees because of that. If CFK was a communist she was the most lukewarm ever, any commie worth their salt would have nationalized everything and told them to fuck off.
*For the record: I do sympthize with Kirchnerism and I believe Néstor did the very best he could to fix the disasters of 2001 and make the country grow. Just to clear up that this is most probably a biased take, but I stand for it.