I didn't call it a "flop", I said it's status as a flop doesn't correlate to how good a product is. The Butterfly Keyboard never flopped, but it also never got a legitimate competitor. People bought them because they were forced to, same as they were with Airpods and arguably the Apple Watch.

I feel the same way about a lot of Apple products. The Magic Trackpad would sell out instantly if it got a new model with USB-C - but Apple knows they can ship more Lightning cables if they avoid it. It's part of the sinister math that goes into making you and I rely on Apple's constant... ahem, Innovation.