That is very factually wrong. The reliability will be worse. That $75 keyboard is going to be used be hundreds of thousands of people, not millions. There is no safety involved. No one is testing to see how sunscreen and 50 other liquids interact with it. Dump a sugary drink on your car buttons, they will still work. Do that on your keyboard and it wont.
This only makes sense if touchscreens are reliable. They are not. You should look at the fault rates. Cheaper isn't better. In any case, we had cheap and good analogue before so let's not pretend like it's not possible. It might have been more expensive than a keyboard, but it wasn't dramatically different or we would have never had it. They just found a way to 1) reduce cost by going digital and 2) charging a premium for going digital as it was perceived as an upgrade by a majority of the market. They sold it to us, it's what they're good at. It doesn't mean it was a good idea.