Yes, that is correct. I am only seeing that when I click on users on mobile and then screen the list of Frequent Posters in that thread. However, it is consistent for me across a given device.
However what I think the issue that you are reporting may be is that for some threads there is no “users” listing. So you only have views, likes (if any), and links (if any). The thread about the FA for example does not have users listed. I am assuming there needs to be a minimum of X users who participated in that thread for that field to populate.