If it ain't broke don't fix it..
You can see the weight graph so Flash is working fine. The site owners are just keeping it there for people with Iphones and Ipads that can't run Flash, so instead of getting emails every day on a non issue I assume they are trying to make it common sence to the Ipeople.
"Wanting is an illusion. Doing the things necessary to get what You want is reality!" -JIE