I play in japanese so I didn't listen to her voice in EN until I saw the multiple threads about this.
First I don't think being trans or not, or being from america or not has anything to do with her work, as long as someone does a good work that's all that should matter.

I do agree she sounds a bit amateur compared to the others, but I think people is missing the point here, or maybe just don't know much about how dubbing works.
She's not at fault for anything, the one at fault here would me the voice director, he's the person thal told her how to portrait the character and gave the ok to her performance.

I think she can do a much better dub with some work and a good direction, but she needs proper direction from someone interested in teaching her a bit.