The theory I've heard is built on the fact that China (CXMT) is starting to properly get into DRAM manufacturing - Micron might expect that to swamp the low end of the market, leaving Crucial unprofitable regardless, so they might as well throw in the towel now and make as much money as possible from AI/datacenter (which has bigger margins) while they can.
But yeah even if that's true I don't know why they wouldn't hedge their bets a bit.
So position Crucial as a premium brand, raise prices 4x instead of 3x, and drastically cut down on the SKUs to reduce overhead. If they tried that and kept spiraling into fewer and fewer SKUs and sales, I could understand it. But the discontinuation felt pretty abrupt.
But yeah even if that's true I don't know why they wouldn't hedge their bets a bit.