Agreed. Per the last Stillfront report that reported specific figures for GS4 (early 2017), the Daily Active User Count was around 1500. Even if you assume the average is 5 accounts per real world player (a conservative top end estimate), that number is still 300.
Here is the link. GS4 Info is on slide 14. http://www.stillfront.com/site/wp-co...esentation.pdf