She heard a knock on her door and realised that referencing the Anti-Gaga (So Legit) isn't good for the combined operations. Taylor is using Kesha to drive a wedge between Katy and Dr Luke. Gaga joined in to avenge 2013.
She probably didn't know it was Lana until people started saying in the comments and other people of the church posted the same image. Lana should sue if hillsong is using a unauthorized pic for promotion tbh.
Can't stand her obsession with this church.