i just watched stone vs wilcha and basically wilcha didnt have vision of stones ove, yet he plays like he did. He makes a gas before gateway then his prob goes to see the ove in his base not to mid.
im sure if you look into wilchas builds, you'll find he doesn't build like that, and regardless of the build order.. for him scouting his base with out seeing anything is super suspicious. its to early for a c rush or anything else. he has no reason to scout his base.
ask stone for the 2 obs that where in the game, and last he wanted to wait to start game till his friends showed up to obs.
First ove scout.
first plyon finish, gas/gatways then scouts the side of his base the ove came from.
and wilcha didnt want to start game till his friends joined.