Starting with a 250GB SATA SSD now in production, Samsung plans to offer high-speed, high-capacity SSDs and eUFS solutions based on its sixth-generation V-NAND.... Samsung Announces Sixth Generation 3D V-NAND SSDs - 136 layers
Sure, go ahead Samsung. Instead of offering higher performance and reliability, they offer only more nand Layers and lower nand write cycles. That's the Samsung's right way to do business
Samsung isn't the only one doing this, they're all going for size. SSDs still have to catch up to HDDs in size.
Its the practice that all will follow, else you wont get bigger SSDs, specially in the 2280 NVME space. If you want more endurance.... overprovision your ssds.