I don't know if I'm being naive here, which is possible, but the first thing I thought is that this gesture is not for the media or for us (obviously), it's for Solange. Maybe they've stopped talking to one another and Beyonce wants to make up, so after Solange deleted most of Beyonce's pictures from her Instagram, Beyonce did the opposite.
I'm probably reaching though
Your not the only 1 cause I was gonna say the same thing.