Same vendor, different issue. How many tables in the database aren't really tables, but are actually just 2 dimensional data stores of unknown quality? Tables should have a unique index. Of some kind. If it's a formal PK, or a unique constraint or a unique index, it needs have *something* unique enforced, or it's not really a relational table, but is instead a pile of unknown quality data.
from sys.objects so
left join sys.indexes si
on si.object_id = so.object_id
and si.is_unique = 1
where si.index_id is null
and so.type_desc = 'user_table'
order by 1
428 tables with no unique indexes. This goes with the 36 completely duplicated indexes and 50+ partially duplicated indexes.
And by the way, I checked. is_primary_key implies is_unique, and is_unique_constraint implies is_unique.