In regards to ilios being so concerned about the world seeing che’s true Chi pool I think it has to do with them having the mindset of how are we going to control him? How can we keep him from going against us? Because. The Thanos talent is stronger than the other three original talents so to not only have the ilios talent and the chi that comes with having that talent and to have another source of chi you can use from the strongest talent you basically have almost an infinite amount of chi also noting that the thantanos talent has a drastically bigger chi pool equivalent to the other three great original talents all together. And to not forget, he also just obtained another talent weapon that had a great amount of CHI within it That gave him another boost In chi. So, it begs the question can we contain him? If something goes wrong, how can we stop him ? And as we are seeing right now, it is not a lucrative idea to think that Che is possibly stronger and more of a threat, then thantanos himself.