Damn, take an accounting class if this is new to you.
No, this is not about getting extra cash directly from Paradox via longboat delivery service. It's about indirectly getting funds by having Paradox cover Obsidian's distribution, marketing, QA, and most hilariously Kickstarter pledge rewards.
It's creative accounting and PR speak.
That's exactly what they're doing, except it's not 'creative accounting' (it's, like, a basic business and logistics action) and it's not 'PR speak' (they, uh, explained exactly what they are doing, and you're basically repeating it).
Obsidian is paying Pdox in a share of future profits in order to contract them for certain logistical aspects, because they feel that this is cheaper, or at least delivers those logistical solutions better, than handling it internally using their KS money. OH NO! What if they hired 50 kids to box up the physical copies instead of Chris Avellone doing them and then paid them in 0.00001% of the sales? OH GOD