Nah.
That’s like saying a lot of banger songs could exist but the person doesn’t know how to write music.
Absolute delusional bullshit.
Verifying the idea is good is also part of the process. Play testing, making hard decisions, smoothing out jank, juicing up the experience… The whole implementation can make or break a game.
It’s wild that hundreds of years ago, high society women would wake up to put on makeup. They’d literally never be seen without it. Waking up at crack ass morning, wear makeup, then make breakfast.
My wife and I went for a walk and she didn’t even wear a bra.
Life is great.