If LOL'ing and making snarky comments about how you understand but it's still underwhelming makes you feel better, good for you.
But I have never seen a single person who truly "understand the technology perfectly well" say it's underwhelming.
Most of those who actually dug deep enough to "truly understand" do see the limitations, but because by that point they understand the potential, they see the limitations as problems to solve and opportunities to take.
It is those who only scraped the surface that say it's "uninteresting", "underwhelming", etc.
Ancient people thought they "understood the world perfectly well" and thought it was flat. Suit yourself.