Well, it turns out Favreau and Filoni had only written in 30 stormtroopers but later felt that this number wouldn’t work.
In terms of The Mandalorian, both Jon Favreau and Dave Filoni recalled being in a bind when devising the season finale.
Not only that, but they had also maxed out the number of available Stormtrooper costumes.
Fans no doubt remember that the finale features a standoff between Mando and his allies and Moff Gideon and his Imperial army, which is comprised of many Stormtroopers.