Has this sort of thing ever happened to you?
Adding extra servers like own cloud storage, email, IRC, etc. just expands your risk to more services (unless you internally separate them into namespaces/VMs, but then we're really far away from a "simple static hosting" territory)
You're right that there's fewer wormable issues these days. But the question is: does your usual approach to security allow you to stay safe when (not if) the next one happens. And feel free to continue in not-super-secure way for personal, fun things. Just keep in mind that there's more to the story and the more moving parts, the more you need to work to keep things reasonably secure.