I don't know the actual answer to your question, but I do know that when you make beer from wild yeasts you get a really low alcohol content, like 1 or 2% ABV. There was an episode of Brew Masters^[1] that I remember watching where they collected wild yeast from a date tree in Egypt and used the yeast to make beer, and the ABV content was around 1% if I remember correctly. The brewer on that show was the head brewer at Dogfish Head, so if that's as good as he could get I doubt this company would be able to do much better. Modern alcohol is made using brewing yeast which has been selectively bred so that it has much higher alcohol tolerance, which is why we can make things like beer and wine with the alcohol percentages we're accustomed to today.

So this is pure speculation, but if I had to guess their 45M year old yeast can probably only be used to make a beer that's so watered down that it just isn't that appealing to a modern consumer.

[1] https://www.imdb.com/title/tt1795111/