I wouldn't even be mad about it if that was the case, I just wish they'd be open about it.
What I would be mad about is if they retroactively got licenses for scanlated manga, then made a profit by selling subscriptions to read fan-scanlated manga without paying anything back to the groups that did all the work.
And before anyone says that's not possible, remember back to when the updated terms of service were first posted on MD (and since revoked), which said that any content posted on MD becomes owned by NamiComi and could be sold for-profit by NamiComi at any time they decide to do so.