If Fix News was planning an ambush type debate, and that resulted in one of the candidates, i.e. the target of the ambush, declining to show, then it’s their own problem that they blew up their own debate.
It’s not Fix’s job to attempt to manipulate a race.
If you can’t do a proper debate, then don’t do debates.
This is how Trump rolls. He wanted to walk on this and baited them until he got the silly reply.
Trump has done more interviews on more different stations than the others combined. He already attended 6 debates and is on general record as having won them all. Trump set them up and walked. He just sucked the air right out of the system one more time.