Why is TSS using inline script tags to import script?

We're implementing CSP script loading with nonce injection, and we've seen that scripts are imported like this:

<script type="module" async="">import('/assets/main-foobar.js')</script>

<script type="module" async="">import('/assets/main-foobar.js')</script>

. Is there a reason why SSR won't use standard

<script src="..." type="module" async="></script>

<script src="..." type="module" async="></script>

tags? This will be really helpful to implement proper strict CSP. Thanks!