To start, it was clear that many were Musk fan boys. I don't think "bright" was a driving force, but "young, with no prior experience" would be great if you wanted people to make decisions that have the potential to negatively impact millions of lives. You need people with a lack of context to realize those are the stakes at hand. Since it was also clear they were going to "throw AI at it", I also doubt they were looking for anyone who acknowledged the shortcomings and pitfalls of an all AI approach.

I think this approach got them exactly what they wanted. Musk clearly wanted access to as much data as he could get his hands onto; legally or not. There were contracts and investigations into Musk's interest that he wanted control over, and got. Overall, chaos is not seen as an issue for those in this administration. The attitude from the top was clearly that these agencies and contractors "deserved it" for some reason, even though they have no idea what they really do or why they're doing it.