When I do it (like the error I found in Catra's bio), I post it so it can be fixed...or if it's too late to be fixed, Mattel can find out what went wrong and change the process so this doesn't happen again.
I thought that's what happened after Roboto's shoulders...but I guess not.
One weird thing though, is since Hssss's shoulders are different internally, it does appear that was a change since the Roboto error (big = left, small = right) or whatever...but the problem still occurred. *shrugs*
The feedback really does help Mattel make better figures for us though! Like, He-Man, Beastman and Skeletor. When the first people got King Grayskull from SDCC, they posted about how his cape couldn't come off and we noticed the next 3 figures looked like their armour couldn't come off either. Mattel asked fans and decided to postpone the line so they could fix this so all armour would be removeable (like advertised). That's why the figures kind of have that strange "T" shape outlined in the middle of their backs.
They also fixed loose ankles for some figures. So...it's a process, but I really do believe it helps absolutely!