I think he was just using Katy's name as a figure of speech here.
Yeah. He could've subbed in anyone like 'let's write a Gaga song' and the meaning would've stayed the same. He's not saying that Katy uses writing camps.
Katy Perry doesn't use writing camps tho. He was just using her as an example because her music is so commercial successfully and it's perfect bubblegum pop.
After participating in some impersonal writing camps for artists such as Rihanna, Antonoff swore off sessions where he couldn’t work face-to-face with the artist. “I don’t want to imagine what someone would want to do — I want to collaborate.
Quote:
"I came up with that melody, the verse and chorus, in about 30 minutes and sent it back to him," Swift said.
Some of these songwriters and producers seem so messy lately. They're supposed to stay behind the scenes.
Taylor Swift (and artists like her) has paved the way for the Meghan Trainor's Lordes and Sheeran's of the world to allow them to own their own talent and success