Yes, I am acknowledging the fact that they improved the Butterfly keyboard's reliability in two ways. First by addressing the sticky keys issue very early on (as early as 2017, in fact), and second by adding a silicone membrane in-between the keycaps and the switches thereby greatly reducing the probability of dirt entering that sensitive area in the first place. It's important to note that they reduced the probability but have not found a way to prevent it from happening entirely.You seem to be acknowledging that there are fewer failures with the 2019 BF KB. One or two examples of failures is nothing given the millions and millions in the wild. Given the fact that the BF KB is on everyone's radar, I would not be surprised if other KB have just as many failures.
If you want to continue to repeat warnings and old news about the BF KB, that's fine. Everyone needs a hobby. Given the 4 year warranty and the improved reliability, I just think the real risk to the consumer is being way overblown at this point.
I think the main difference between us is that you seem to think this is plenty for consumer protection, and given the 4-year replacement program nobody need worry about an issue that is, in your own words, way overblown and ridiculous. I, on the other hand, absolutely and strongly disagree with that notion. That's fine though, and we can agree to disagree. Since the 2019 generation is fairly new only time will tell which one of was was right.