Comment by dijit

we have journalled filesystems these days, even without hardware protections it does not mean the machine should forcefully make decisions for us.

Depending on the brand of flash storage, there are power loss protections (the same as harddisks, actually) where a little capacitor stores enough charge to park the head or flush the DRAM component of the flash to SLC solid flash storage.. if you have a huge write in progress (enough to blow the SLC cache and the NAND cache) then you might lose that write.