Why exclusions are more honest than inclusions
An inclusions list is marketing material as much as it is a scope, and providers have every incentive to make it long. Exclusions work the other way: naming something as outside the arrangement invites a question and possibly a price adjustment, so nobody writes one casually. When a provider takes the trouble to exclude something specifically, it usually reflects a decision made while looking at your premises.
That makes the list a good indicator of how carefully the proposal was constructed. Generic exclusions copied between documents are easy to spot because they mention things your premises does not have. Specific ones referring to your actual areas, equipment or access show that somebody thought about the site. The second kind is worth more to you even when it excludes something you wanted included.
