I don’t have any cool stories like yours but last time we had a power outage I probably wouldn’t have noticed if I didn’t have HA set to notify me. That’s mostly due to the house setup (solar inverter and batteries) but we do also have a couple of cheap, dumb UPS units which keep the ONT and one of the APs online, which for house layout reasons aren’t on backup power otherwise.
That said the power where I am is a bit dirty - before we had the inverter put in we had some really nasty brownouts that I’m amazed didn’t immediately kill anything. So it’s entirely possible that the backup power has saved something from a premature end.

I suppose you could attach some pedals to a Y2K Superbike and call it a bicycle