How many of those are "the exact same product, but better" though? Definitely the iPhone, and possibly Slack. Everything else you listed was a drastic change in the way an existing service (taxis, home media, backups) was delivered or priced, to the point where they feel like either an entirely different product (or an unsustainably priced one that wins by virtue of being cheaper at first, see Uber and Airbnb).

I'm not fundamentally disagreeing with you -- but I think there are some things where "everybody has clearly been doing this wrong the whole time" doesn't pass the smell test: ovens have been around for millennia, including through the whole industrial revolution and recent exponential modernization of technology.