Prosthetics always looks weird. Disabled people that wear them are clowns. People look at them funny.On one hand, good riddance to her dumb looking shoes/boots. Those were all kinds of stupid. She's a very generic character in general, but that was charming enough. She didn't need goofy mecha clown shoes.
On the other hand, she's doing this to give a leg up to her team. Great play.