I'm not sure what the error was, if anyone knows why this occurs I will gladly accept that as an answer.

This error seesm to stem from the way Astro bundles javascript. I removed @astrojs/alpinejs and just installed alpinejs and import it in my script tag like so;

<script>
    import Alpine from "alpinejs";

    window.Alpine = Alpine;
    Alpine.data("stats", () => ({
    }));

    Alpine.start();
</script>

Which works great.