You're exactly right. The BPS had a loyal following, but sales must have really declined in the last ten years. The BPS ran from 1977 to early 2020s sometime. I don't hear a lot of young guys talking with excitement about pump shotguns like I did in the 1980s during my high school days.
The bottom load / bottom eject design was always a little strange to me when I owned one, but it worked just fine. I sold mine to my nephew who has killed a truckload of doves with it since. He loves it.
