So I think the premise behind this question is that, wince Winry made Ed’s automail, she’d be disappointed or something to see him no longer need it. I don’t think that’s how she’d feel, though, so I tried to articulate that a bit here while also giving the canon explanation for what’s happening on set when he does appear with it like for the FMA One-Shot. I also figured she should let Ed put his restored hand to use a bit.