Nintendo never hid this. The specs showed a Tegra X1 when Switch was released. It was always public knowledge that Switch is an Ouya with an ecosystem and released games.
None of your post is new but it’s like you want to drum up outrage that a company used easily available hardware that didn’t require custom hardware like Playstation or Xbox (which SHARE nearly identical AMD chipsets!)
Why get mad at the hardware choice for an 8 year old console?