It isn't like stories such as this one are rare. Unlike the FOSS v. Proprietary story where it's all anecdotal, we have actual events like this [0] one:

> These differences mean the fakes likely have higher power usage and lower sensitivities, even though they are functionally identical. The foundry could have marked these devices as Si24R1, which is compatible with the nRF24L01 and no one would have been wiser. But the lure of higher profits was obviously too tempting.

[0] https://hackaday.com/2015/02/23/nordic-nrf24l01-real-vs-fake...