Ehh, the dip buying is a bit more of a PR move in my opinion. He "only" bought 150 BTC, which is more or less $6.8 million. Whereas while El Salvador is definitely not a powerhouse country levels of wealthy, I don't think that $6.8 million will make a significant dent on their balance sheet.
it seems that constant reporting and as if it is a big thing is the source because it is true that in comparison, this is a very small thing and is nothing.
but on the other hand this will be better and more profitable on the one hand, considering that if things like this continue to be exaggerated indirectly people will tend to think that their decisions are really successful and indeed it will directly make the prestige of elsavador nor bitcoin would be good. and frankly it's better done than nothing.
2) He probably knows (please don't take me as a conspiracy theorist, I'm just trying to imagine) that someone is gonna start another bull run soon, 'cause El Salvador attracted the attention of many big crypto investors, so a confrontation between Bukele and them about this topic is not so unlikely.
I doubt if there is such a thing but it would be more possible if he really doesn't understand and uses his position as head of state to provide policies and decisions, apart from that I don't think there is anything other than the power of factor.