You’re not wrong, but the question then becomes “why did the US send an advanced military defence system that needs a hundred highly trained American operatives to work”.

I’m guessing the reason is a combination of politics (lots of American politicians with ties to Israel) and practical reasons (validate that these systems still work against the enemies of the state without actually getting involved in a war directly, perform analysis for future improvements for defence on home soil, get people behind Israeli lines to extract intelligence that might not be shared willingly).