And how does any of that mean they should fly as a single swarm on a large base?Because they are different. They're machines that have no differentiation between each other and no regard for their own survival. They can pull off inhuman maneuvers (s-loops?) but unlike ig-88, are meant to be interchangeable and replaceable
Also, there's nothing inhuman about S-Loops. If there was, Starvipers wouldn't be able to make them.
By being inhuman and reckless they care less about their own survival and therefore will stick onto targets longer than organic pilots would because organic pilots would break formation to cover wingmen.
As for the demanding maneuvers I'll cite the scum and villany announcement article which says he can fly like a machine and gets the demanding s-loop.
Also, imperial s-loops are unexplored design space.
Because IG-88 had no need for life support systems and no reason to fear the gravitational effects of maneuvers that would kill organic pilots, the majority of the space within the IG-2000 was devoted to engines and weapon systems, making the starfighter every bit as fearsome as its ruthless pilot.
In X-Wing , the IG-2000 is a powerful, large-base starfighter with three attack, three agility, four shields, and four hull. It can boost, it can evade, it can target lock, it can equip two cannons simultaneously, and it can whip through space at high speeds while performing the demanding Segnor’s Loop maneuver.