Specifically, editorial nixing the story that I asked about.
According to Byrne:
There was an editorial meeting to toss out ideas for the big event of the year. Byrne tossed out his idea. The editor (Mackie) said no, they wanted something different. So, instead, Byrne used his idea for his general plots. After starting the idea, the editor found out about this and got pissy, telling him to stop it. EIC DeFalco got involved and sided with the editor.
Byrne said, "Screw you guys, I'm going home." Aaand he stopped it all.