Eve: 2.23% pick rate, 45% win rate
Olaf: 3.6% pick rate, 46.7% win rate
Sona: 8.51% pick rate, 52% win rate
Obviously win rate isn't everything, but a champion who has been gutted to unplayable levels doesn't have a healthy pick rate and the 25th highest win rate in the game. People keep saying, "she's been gutted! She's unplayable," but I see absolutely no evidence of this. I don't think she's a top tier pick, but there are so many champions who are in a much worse place than her right now.
Comparing her to other supports, she has:
-a comparable pick rate and higher win rate than zyra
-a comparable pick and higher win rate than nami
-a higher pick and win rate than soraka
-a higher pick and win rate than lulu
-a comparable pick rate and much higher win rate than alistar (over 8% higher)
-a higher pick and win rate than zilean
I'm sorry that you believe Earth is flat
Or maybe you are just vastly underestimating her current power level because you've been sucked into the Sona echo chamber on the forums. Seriously, show me any hard evidence that she's legitimately unviable as a solo queue pick.