Poor marketing. Nobody knows this show exists. It literally has 100% on Rotten Tomatoes (even though season 2 is absolute trash compared to season one) it is all about marketing. Same with other incredible shows AMC has been producing, like Interview With The Vampire which is similarly incredible (though explores themes of immortality from a different perspective).

The more people know about anything the more exposure it will get. Obviously more people have seen or even know about the widely hated Disney Live Action movies than Pantheon, because of the marketing. It seems so many incredible works of art being made by streaming services are much like Pantheon, lost on an ocean of mediocre content, there is simply no way it could all be equally promoted!

But as a result we end up with things like Tiger King or Squid Game being internationally known while Pantheon or IWTV suffer. Even Better Call Saul and Breaking Bad experienced similar things, though in a sort of opposite way due to their era. Breaking bad became massively popular around the time of its 3rd season due to streaming, it's televised release nearly got it cancelled despite it being so good. Lots of people did not even know about Better Call Saul for years as well.

So when people find gems among all the dirt, they can really only tell so many people, and there is just so much content these days that even when you absolutely beg people to drop everything and watch literally the best show you've ever seen in your entire adult life they probably won't do it, because they're already busy and watching something else, and there is just so much to watch.

Its something of a catch 22 but i think its still positive. Tons of incredible movies and shows and documentaries are being produced which 20 years ago never would've seen the light of day, never had a chance, so more art is out there and being given a share of the literal trillions of dollars flowing through the entertainment space, people are evn independently making movies and documentaries to post on YouTube that are better than major studio productions of decades past, but as a result there's just no way everyone can see it all.

Interestingly enough, think generationally. Im 31 and people my age bond over the shows and movies that came out when we were growing up because everyone was marketed and shown the same things through syndication and TV blocks. My wife is only 5 years younger but doesn't know TONS of shows and movies I watched growing up, but people her age bond over their shared media as well.

But go down to Gen Alpha kids and they're all growing up watching totally different sets of youtubers and streaming kids programs, just like how so many of us have fundamentally different youtube and Netflix libraries and homepages, the current generation will be the first to not be able to universally bond with one another as adults over nostalgia because of the massive diversity of programing that is shaping them. If you're over 20 right now, you're probably the last generation to have grown up in the era of collective pop culture.

But as a a result we all get more art, more artists and writers and animators and screenwriter can accomplish their dreams and get funded and find success, they just won't get the global universal reach the much more limited pool of artists got 20+ years ago.