The launch was not nominal.
All chamber pressures were nominal, right up until a couple of milliseconds before the rocket blew up.
The dreaded anomaly on ascent.
More specifically, crew-cutted NASA folk in white shirts and black narrow ties from the Space Center in Houston started using that term back in the 1960s and it sort of caught on from there.
Check out the below image from an America that will never be again. Some of us are old enough to remember watching space flights on the TV - which in those days was a black and white TV that you had to slap on the side every now and then or fiddle with the horizontal and vertical hold controls so your picture stayed on the screen.
But in sodomite ideology nominal can mean normative, and the destructions of Space X illustrates in fast motion the progressive destruction of America when blind souls require governments sanction sodomy and punish those which will not.
The SOTUS decision was the second stage.
Perhaps Space X tried to employ politically correct rocket technology, by feeding fuel into the exhaust port. Which is about as logical and safe as homosexual relations which it corresponds to.
Yet we all have sinned to varying degrees, and there is room at the cross for all who will turn to Christ and believe and receive the risen Lord Jesus to save them by His sinless shed blood.