Are there typos on the "Item Exchange" table for Midan Manifestos?

Taken as read, it seems to imply that:
1) The only pieces of wearable loot (ie: aside from upgrade tokens) that will drop from the third floor are pants.
2) The fourth floor drops i245 weapons, along with upgrade tokens that allow you a meaningless upgrade to i240 weapons.


Which... Doesn't really make sense. Surely the third floor has more to its loot table than Pants and Twines, right? And surely you don't upgrade to an i240 weapon from the exact same fight where you upgrade to an i245 weapon... right?