Great job on this decision making tool. One thing that might be missing - the business viability of the feature. All else being equal you prioritize features that add value to the company that builds them.
I'd guess that was intended to be captured with "how valuable is the feature to target users, truly?" If target users truly find the feature valuable then I guess that means the feature is adding value to the company.
Users don't find ads valuable, but plenty of businesses still wants developers to add ads to the product.
To be fair, the tool doesn't seem to be exclusively for "business software", so that would be a parameter you'd control yourself.