Sounds more like crappy firmware to me. This is not the first SSD to suffer from a crippling frimware flaw that is impossible to fix.

I lost almost an entire computer lab of Dells thanks to the goddamn Sandforce firmware. One that the company acknowledged but refused to lift a finger to fix. Luckily it is possible to fix these yourself despite the vendor hostility towards the repair. Look how easy it is: https://computerlounge.it/how-to-unbrick-sandforce-ssd/