This is not the first time you use your own personal opinion to define what's stupid/dumb and what people should do or not.
In this kind of situations, the most reasonable thing to do (that's if you care about sharing information) is telling people objectively, what are the advantages of 5.4.0 especially since there's no IOSU exploit in your hand at the moment and you have no idea what vulnurability it uses and how it works...
Hykem said he's preparing an entry point for 5.4.0 and 5.5.0 users, there is a possibility that it would be more stable on 5.4.0 so while you can always update if you want later, the vice versa isn't possible now.
So yeah, I would encourage you to stop telling people what they should do with their consoles based on your own opinion and choices.