YuuuuuuuupDefinitely agreed with the bolded. "Casual" in modern WWE is someone who watches a lot of WWE but not much else. Or maybe aren't as entrenched in the online culture. It's certainly not the people who were into Hogan or Austin back in the day, who would watch just for them.
I mean, look at Wrestlemania this year. It's always hailed as being WWE's big mainstream event. And yet, this year it was a 5 (7 if you watched the preshow) hour long event that could only be watched on WWE's proprietary streaming service. You can trot out all the John Cenas or Goldbergs you want; there's nothing "casual" about an event like that.