What is going on with ATC? It's like they aren't even in the same industry as us.

https://youtu.be/stTOjPHP1QQ?si=jPK3JO-FS96Okk_5

Long story short, a Frontier plane and a Piedmont plane are landing on intersecting runways. Frontier doesn't like the spacing and goes around right before the Tower orders Piedmont to go-around. The controller then complains to Frontier for going around because the controller was going to fix his mistake by making Piedmont go around... not having both go around.

Not only is the controller micro-managing Piedmont by issuing numerous turns and asking for speed changes that could interfere with a stabilized approach, but he also has a secret escape plan and doesn't let any of the other parties know what that is. How can a tower controller not be prepared for any airplane going around at any point? I've seen similar behavior with takeoff clearances. ATL will routinely clear planes to take off when the first plane hasn't even reached V1. Do they not realize that planes can abort a takeoff or landing at any moment?

I haven't had a controller in the jumpseat since 2012. They need more exposure to current industry standards of safety and risk management.