I mostly agree with this. There are over 8 billion human beings living on this planet right now, and the vast majority of them do not even realize we exist while we are alive, so why would they be aware of our deaths? There would only be any widespread awareness of our existence(s) if our passing's were broadcasted by a large media outlet, and even then most of the deceased people which are brought to attention by media outlets are complete strangers to almost everybody who is watching or reading; the death of a stranger will likely be a mild afterthought who will be forgotten after a few minutes or hours, and then everybody else will return to their own lives as usual. Because of this we are not special; we are just another number.
Despite thinking that we are not all special I still believe that we are unique to an extent. I make the distinction between special and unique, because we are unique in the sense that there is nobody else in the world who has the exact same memories, experiences, relationships and life as you. Though since the majority of the human population does not know you even vaguely your own life experience(s) are probably only relevant to you for the most part. Also: a complete stranger may have a role or job which is necessary for the operation of society, and if many people who hold the same or similar roles or jobs died all at once there would definitely be a noticeable impact, so from this perspective you could be considered important. The issue though is that while the death of a certain group of workers would have a tremendous collective impact on society, it would not cause your existence to become special, because this impact would only be noticed when it happens on a large scale, so you are still just a number among the many other deaths who it took to make others realized that society cannot, or could not, function without you.
In short: We are unique, but we are not special.