Am I the only one that knows why Sona was nerfed?

She's obviously been a strong pick for a long time, sure the nerfs may have been overdone, BUT, it was because of the planned ultimate skin coming. Riot knew she would receive a huge spike in play time regardless of whether or not she was nerfed, and now with everyone playing her, they will get tons of feedback regarding whether or not the nerfs were truly too much or if she's good how she is now. If everyone started playing her when the nerfs hadn't gone out and she was just dominating everyone, she would get these nerfs anyways, maybe even worse, and people would end up far more pissed off, so everyone needs to just relax and be as stoked as I am for this immaculate skin.