"Furthermore, we added a new condition where you can accumulate a specific amount of Job Points as well."
Can we speculate that JP will only rank it up so far? it says specific amount.
Umm that plainly says you can juts use JP instead of fighting Wave 3 MB's. This was in response to the JP's being pissed that SE would put the upgrades behind Wave 3 Dyna D. It's the same reason the upgrade currency will also drop from Omen and Dyna D trash mobs.
I know you guys want monuments erected in your name eliciting how awesome and elite you are for fighting Wave 3 while the rest of the peasants avoided it. You want that monument to give you preferential treatment and special advantage over those peasants, a form of exclusive badge of honor that proves just how better you are then everyone else. Unfortunately the game hasn't been that way for years and no last minute decisions by SE to change direction and grant you said special privilege.