What is the meaning of this piece of Standardese about shared_ptr's use_count()?

Question

While trying to wrap my head around the problem shown in this question I found myself stuck on the following sentence from [util.smartptr.shared]/4:

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Answer 1

I think when we add the previous sentence the intent becomes a little clearer:

For purposes of determining the presence of a data race, member functions shall access and modify only the shared_ptr and weak_ptr objects themselves and not objects they refer to. Changes in use_count() do not reflect modifications that can introduce data races.

So, the last sentence is just emphasizing the same point as the first sentence. For example, if I copy a shared_ptr, its use-count will be incremented to reflect the fact that the shared_ptr has been copied--therefore the result from use_count() will be changed--but this is not allowed to access (and, especially, not allowed to modify) the pointee object, so it can never introduce a data race in use of that pointee object.