Are SSDs that solid?

Here’s the run down of the firmware issues Etsy had over 5 or so years.
Intel and Samsung turned out to be the most reliable.
https://laur.ie/blog/2015/06/ssds-a-gift-and-a-curse/  

The issue raised by Algolia is due to a Linux kernel error
https://blog.algolia.com/when-solid-state-drives-are-not-that-solid/