I think technically the law catch up is technically a bigger problem and reason, since more and more countries seem to be inclined to ban Loot Boxes for minors, which this is an example of:
While the normal crates are technically Loot Boxes, the Wish Crate was just way too predatory Loot Box like in design and especially price wise for people to be that interested.
I assume F2P games may have to move away from Loot Boxes soon and instead pay a specific price to get the characters/gear, or maybe do monthly subscriptions like MMOs. (I wouldn’t mind paying 12-20 for 12 months/a year of play Disney Heroes wise, better than microtransactions).
But yeah, the F2P industry overall likely have to change soon and adapt ti new laws in regards to Loot Boxes, potentially also microtransactions more so later. This include Disney Heroes as well most likely.