It is a difficult situation, on the one hand FTDI have the right to protect their IP and reputation as problems with bad clones/fakes that people believe are the genuine device reflects badly upon them.

On the other hand bricking a device that most consumers purchased in good faith as containing genuine parts puts the inconvenience and out of pocket expense on the consumer and not on the manufacturer of the device/cloned chips which is where it should be. An act that can be counter productive to FTDIs reputation in general and specifically if the consumer is unaware of the full circumstance surrounding why the device no longer works leading them to conclude that FTDI devices are problematic.

I don't know what the ideal solution would have been but unfortunately when presented with problems sometime the first and often simplest solution is not necessarily the best, especially if it is the result of a knee jerk reaction that does not consider the wider picture/ramifications.