Sorry, I've searched for 1h and cannot find the link or discussion anymore. Maybe it was related to nRF24L01+ modules, but I don't think so.
What I remember was someone having to resolder the flash chip after ~50 flashes to which someone else replied that they might be using recycled SPI flash chips in order to get the low cost, which makes sense.
You can take it as circumstantial evidence, at best, but a repository/poll would be more useful, where people are documenting how many successful flashes they have performed on a single module.
Since I cannot find the source anymore you can ignore my comment or take it with a big grain of salt.