Recent reviews by Vuffy Pulva

At the risk of sounding like a contrarian, I think it's fair that this DLC isn't included with the ultimate version or season pass.

It's essentially a cheat pack. The XP and Gold in particular are cranked way up in these dungeons, with tiers offering 20k, 50k, and 100k per battle of their respective currency. It would absolutely destroy the balance of the game if these were available for everyone who bought the game pass. Especially when you get strong enough to digi-attack each group, money just pours into your wallet, easily netting millions per minute.

The dungeons basically become a feedback loop where you get more money, more levels, and more stats over the course of minutes. Definitely not how the game was intended to play.