Vaaling Rain Festival Ornate Strongbox Useless?

https://medal.tv/games/path-of-exile-2/clips/l25N8B6WEjfHPNdC0?invite=cr-MSxxemQsMzI3Nzc5NjQw&v=57


Is there any point to vaaling these? Every source I can find online says it should corrupt the items it drops. it does not. I have done a handful and haven't noticed any difference.

Am I just wasting my vaals?

Is this working as intended?