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.
I mean also it just seems like a case of normalization. You start out with slow meaningless MTX then you move it more and more. Hell its a bit odd since I'm glad there was some outrage over the MTX in this game but as you said its most likely due to the increase to $70 usd which is a slap in the face to deal with MTX in a fucking single player game but Capcom is one of the shittiest companies when it comes to dumb/pointless MTX.
Monster Hunter, Devil may cry, Dead Rising, and Resident Evil all have this kind of shit with very little peeps about it. So you basically hit the nail on the head on this on why there was such a big outrage this time around. Also I'm really surprised fucking Street Fighter doesn't, the literal poster child of pointless/odd additions which in a funny way has actually only gotten better in the digital age. I'm not a big fighting game fan but season passes have sort of solved having so many fucking editions of a single game. Like holy shit there were 5 fucking versions of Street Fighter 2 in a span of 3 years. 3 versions of SF3 in 3 years.
Edit: marked by bold, I was tired when writing this comment and seems I just forgot to finish my full thought before posting.