You can do editing and commenting without using scripts.
Indeed, I actually use very few scripts in DTPO and when I do, it’s normally either one of the built-in scripts or a template (such as the Contacts or Annotation templates).
Annotations or editing of PDFs or other files are either done using the Annotations template or by some other means entirely that doesn’t require either a template or a script.
Scripting (at least beyond what’s built in) is far from a necessity, even if you have somewhat advanced needs.
/me nods 