Probably because it's a bullshit attempt at virtue signaling to sell product instead of any actual concern. My wife had to have the brace and her case was actually very mild. Just as you say, real scoliosis patients are very hard pressed physically and the mental toll is high. They don't need a doll, they need better treatment options. Understand, I have no problem with a company targeting disabled folks to sell them a product those folks might enjoy or want However, Mattel (maker of Barbie) had 5.5 BILLION dollars in revenue last year. If they really wanted to help, rather than make a doll to market, they could sell the doll and donate 100% of the profits to research on scoliosis. Or even just look up the addresses the Scoliosis Research Society (SRS).or the international Society on Scoliosis Orthopedic and Rehabilitation Treatment (SOSORT) and mail them a million dollar check.

Virtue signaling for profit pisses me off too. I hope the best for you.