That can be overcome with enough skill, certainly at this level. Crystal Dunn and Jenna Nighswonger are world class defenders and both Sine's height or shorter. Just here in Utah for the Royals we have Zoe Burns starting as our rightback and she is teeny tiny. And that's at the professional and international level, the list could go on.
Will be exciting to see her get more minutes in any position in any case.