they are loosers.
they spent decades and billions and billions
and billions of dollars , sort of rebuilding used shuttle parts(SLS= shuttle leftover systems), and cant fill the fucking tanks, cant get things to seal, there thruster valves(old shuttle stuff) sieze up, and they are a bunch of bumbling grifter loosers.(sorry! to the many good people caught up in this debaucle)
This is doubly not unusual dealing with hydrogen.