Play on words on your behalf; let's make it broad and say pitch OR angle of attack at 59 degrees.... either way, both of them are bl**dy steep and non-sustainable as you say in practically any Civilian aircraft.
A good example of the rules are at airshows. If you were able to perform a 60 degree pitch / aoa whatever, people in non-aerobatic aircraft would be zooming down the runway and performing steep pullups.. they don't... I wonder why?
Someone find a reg to prove othewise...