react/require-optimization warns when using PureRenderMixin.shouldComponentUpdate

react/require-optimization reports the following as incorrect even though it follows Facebook's documentation for using PureRenderMixin with ES6 classes (link):

export class MyComponent extends React.Component {
    constructor(props) {
        super(props);
        this.shouldComponentUpdate = PureRenderMixin.shouldComponentUpdate.bind(this);
    }
}

I can try submitting a fix if you agree that this is actually a bug