Not sure what bukele has to do here. I’m not a Milei fan by the way but I did voted for him in the ballotage as there was no choice but:

1- yes, Milei never said bitcoin will be legal tender. He simply agrees and celebrates the existence of a private money and the freedom to chose whatever you think is useful instead of making it compulsory

2- Argentina has lots of problems but is far from being comparable with El Salvador. Sin yes Argentina luckily is not comparable and bukele is not a sort of God despite of having done lots of potentially good things there