I agree with Simon on this, mainly because I said it first, around 3 weeks ago.
Stacey was my early favourite, a natural singer with a pure-toned, perfectly pitched, highly listenable voice, reminding me a little of Karen Carpenter. Her early performances made her the rightful favourite with the bookies, viewers and forum posters. Her
Hi-De-Hi chalet maid personality was the icing on the cake. You could fall in love with her and with her voice.
But then she was made to sing bigger and bigger songs, where she overstretched that pure-toned voice with its stable, lullaby qualities until she started to sound stained, and untidy on the way she closed a lyric. She lost most of her finesse. That and some of the absurd costumes, from that Mae West/mermaid dress to kissagram girl just made her seem all the more amateur instead of a professional-in-waiting. I knew she wasn't going to win, and I didn't think she deserved to do so based on what was happening, and so my allegiance switched to Joe.
I won't entirely blame Dannii for this, because there is a tendency in these shows for all females to have to sing at their loudest and highest to stand out. Simon, Louis and Cheryl would probably have done the same. Last year saw a battle royal between Ruth, Laura and Alex for decibel output, with two of them losing their voices. It seems post-Leona female contestants are expected to be vocal powerhouses, and this isn't what Stacey is all about.
Whoever was ultimately responsible, the direction Stacey took was the wrong one.