Lets filter any reward system by the logic presented by Chimes.
You should consider if the amount of attempts for any reward, the time between attempts, the ratio of acquisition of the reward are providing a FUN experience to your target audiance, as mentioned by Chimes, you can talk about the best optimal option… Realm hop, LFG, armies of alts…etc, If that doesn’t provide good gameplay, then you’re failing to deliver a great experience…that’s why we got some kind of fix for holidays, however; I still think there’s room for improvement regarding that RNG, since some players now use multiple accounts for more boost attempts because RNG is still an issue for a limited time content.
Even if the content isn’t limited time like those druid forms, it could be like Soundless or a lot of other rare cosmetics which are AFK lobbies in the game, that doesn’t provide actual fun gameplay. Also, how these rewards could work in future expansion when tools like LFG and realm hopping are more difficult.
Is this being fixed for 2024? Nobody was happy with the changes last year, please don’t tel us the event is even longer this year because as you already said it’s a horrible experience for alts