Acceptable in F2P games, inacceptable in full-priced purchased ones. About hybrid situations with low-priced games plus microtransactions, lootboxes, etc, I say meh, I don't feel attracted by them at all, I largely prefer a full-priced COMPLETE game, also because I did the maths, and a hybrid priced game can end up costing a lot more than a full-priced complete one, even many times the latter's price.
PS But no, as many others already wrote, I don't blame Blizzard.