The Heavenly Gods did not know what Zhou Tian was about to do. So at that time, after listening to Zhou Tian's arrangement, what they were thinking about was how not to be recognized. Thus, while those deities were still pondering how to hide their identities, they would never have imagined what Zhou Tian was about to lead them to do next!
Zhou Tian was well aware of the thoughts of those Heavenly Gods, but he merely observed from the sidelines and did not hint to them that hiding their identities was futile.
Although Zhou Tian planned to plot against those Heavenly Gods, he wasn't confident that it would go off without an accident. Based on Zhou Tian's plan, he definitely dared not let those Heavenly Gods know about it.