Why are single slot, consumer grade, high end GPUs no longer

HIS quietly releases single-slot RX 550 GPU single slot gpu A Single Slot Low profile RTX A2000? Yes, And it's amazing! In this video we take look at single long slot toaster GALAX is marketing the KATANA as the world's first single-slot GTX 1070 single-slot graphics card with a maximum thickness at just 16 mm,

single slot Inno3D GeForce GTX 1050ti 4GB Single Slot Edition This one is sitting in my Unraid Server The 4GB Version is requiered for Hardware