“While everyone goes off and praises Luna, constantly loving her, giving her attention, and doing everything for her, Celestia doesn’t get anything. She gets no love or compassion, only hate, slander, and being ignored. She doesn’t want that. While she should be happy about her sister getting some love after a thousand years, it shouldn’t be at the expense of the other being completely ignored/hated.  
I know that Celestia doesn’t receive as much hate as she use to, but she still gets flack every now and then. Hopefully this season she’ll get the attention and love she deserved from the very start.”