It's the same type of microtransactions that they had in Resident Evil 4 Remake, so it's probably not so much a test as a limit they found where backlash is small enough that it still makes sense. But there are 2 big differences with Dragon's Dogma 2.
They fucked up the PC port.
They increased the base game price.
Anyone that tries to justify microtransactions in a paid game is a moron. They were literally introduced in free to play games to finance the game development. In paid game, it's just pure greed.