I can't at people draging her for what the entire Britney fan base is saying on each new album since about Blackout which is they want more promo and that her songs would be way higher and so does her sales if she would do promo.
That tweet is on point for me, well, other than I would use a different set of words instead of the sucking ass part but you can see why she is annoyed at this point.
At the end, we all as fans want our idols to do promo cuz' it does help the song expossure, so why does it have to be different when Iggy says it? This is getting a bit tired TBH.