DE never left every where in the world, it was just relegated to the bottom dusty shelf because hardly anyone was buying it.See bolded. Multi blades may remove hair more "easily", but "better" is a subjective opinion. There is significant evidence to show a single blade, used properly will provide less irritation for the same level of hair removal as a multi-blade.
Probably has nothing to do with the manufacturers simply stopping the shipment of everything BUT cartridge razors to most of the world, right? Marketing is done for a reason, as we all know, and those shareholders are prickly about their ROI.