Most of the time, expecting Iron Men to be disciplined was unrealistic. It was not that they deliberately refused to follow orders; genius scientists always had new ideas. When they were alone, they might behave themselves a little better, but once there were so many counterparts, everyone wanted to prove that he was the best. Problems were inevitable.
Still, the Central Universe's prewar preparations were exceptionally thorough. Those supplies did not necessarily have to be collected by Iron Man—even if they required specialized technicians, since the battle had not started yet, ordinary professionals could have been sent to transport them. At worst, it would have been slower. This arrangement clearly had deeper intentions.
Almost every Iron Man was shocked upon seeing that terrifying armory, and they also felt the pressure. They could not have built so much equipment themselves. It was not because they lacked the skill, but because their universes imposed limitations: the military and governments in their worlds would never have allowed them to possess such power.
That meant they could not handle the equipment with the mindset of, "If it breaks, it breaks. I'll just make more to compensate you." They had to be as careful as possible, because if something was damaged, there would truly be no replacement to be found.
Since that was the situation for most Iron Men, their mentality shifted from "I have to surpass everyone else" to "I absolutely cannot be the one holding everyone back." They began handling the equipment with extreme caution.
Because this was the first purely space-based combat operation for most Iron Men, most of them let Jarvis take over their armor. They were only responsible for making decisions, while Jarvis handled the detailed operations. That also freed up some time for them to learn how to read