First thanksgiving event: run your daily rotation to craft lootboxes to open up for some awesome RNG loot, which has a chance to drop a key to spin the prize wheel
Previous thanksgiving event: run your daily rotation to craft lootboxes to open up for some significantly nerfed, but still slightly-better-than-your-average-trash RNG loot, still has a chance to drop a key to spin the prize wheel
This thanksgiving event: run your daily rotation to get absolutely nothing other than event currency (don't tell me event boxes drop anything but event currency, cause they haven't dropped anything since about a year now), while your "prize wheel spins" are now moved to cash shop only
Great trend you've got going here.
Next thanksgiving event, if servers are even alive which is highly questionable: run your daily rotation to get locked boxes, which can only be opened by keys bought in cash shop, with a 50% chance to break the key on each open attempt. Inside the locked box is an RNG chance to drop another locked box, which takes another cash shop key to open, containing a key to spin prize wheel, which has yet another RNG chance to drop another lockbox, taking another cash shop key to open, containing a prize
Of course, you've also got a crappy reskin costume, the usual slew of trash event prizes, and of course, for the 5,358th time, running dailies to get some currency.