I mean he liked the guys work from a year ago and now he's hired. How else would you go about hiring people?
Hire people you don't like or don't think fit your vision?
Most of the talent that is remotely television ready are under contract to WWE, Impact, ROH, Evolve, MLW etc.
As contracts expire they can present their offer, but they can't just poach under contract talent from other companies.
All In was in September 2018 - was AEW enough of a thing back then to have Cody masterfully planting seeds a near year in advance for Marko freakin' Stunt of all people?
Cody liking him isn't an issue. It's that he's attacking people on social media in his defense. The fact that someone so thin skinned is booking the show and choosing who to hire is concerning to say the least.