`prefer-svelte-reactivity` for a simple `new Date()`?

[frederikhors]

Why this error:

Found a mutable instance of the built-in Date class. Use SvelteDate instead. eslint (svelte/prefer-svelte-reactivity)

for this code?

<DateTime
    onchange={(date) => {
        filters.date = {
            gte: date ? new Date(new Date(date).setHours(0, 0, 0)) : date,
        };
    }}
/>

I do not need any reactivity magic of SvelteDate here, or do I?