You’re making a lot of leaps here. Chiefly, lowEST is a relative assessment, and yes, I think being good at being big requires less practice and skill than successfully running an offense or even just learning how to get a good shot off the dribble.
I never said Rudy doesn’t work hard. But you asked if I think he rolls out of bed and is good at blocking a shot. Honestly, yeah, I do. He does more than block shots which is why he is the premier defender, and that takes work and discipline. He’s developed his raw ability, but no one rolls out of bed and can run an offense or routinely nail contested 30 footers. Absolutely no one.
You earlier said that no one was high on Gobert during his rookie year and that simply isn’t true. I was excited the day they drafted him, because that size - as it is famously said - cannot be taught. Every time he got minutes, you could see how that size impacted the game, even if it needed some development (which every player needs to do!).