I went to the October 11th Data Doctors Report, clicked on the 306 in the first column for suggestion 604, and then tried the first entry, which is Cobham-6. In this particular case, the place of birth isn't actually empty, because the year of birth was incorrectly placed into the place of birth field. But it does turn out that this profile is unlocated. I couldn't fix the date, because I don't have a pre-1500 badge, but I did add the Unlocated Profiles category.
The next profile on that page was Bomersbach-2. This time, the place of birth field was empty, so, yes, Ellen, those reports do catch empty location fields. Although Sarah is correct that just because one of birth, marriage, and death location fields are empty doesn't make a profile unlocated. In this case, there are two located marriages and a located death. So finding unlocated profiles through these reports would still be a manual process of checking through all the hits. But even so, it would be a much shorter process than going through all of the profiles on WikiTree. 604 has 2,771 hits, 634 has 2,686 hits, and 664 only has 226 hits. (Although of course not everybody gets married, and not even those who do necessarily have that noted on their profile.)