Failing to make a back up of the software on a device which you're attempting to hack and subsequently destroying hardly seems relevant to an auto update locking you out. That's more like changing your password and forgetting it, or back in the day formatting your hard drive without a copy of XP to re-install. I don't know which phone you're referring to, but every phone I've rooted has been salvageable.
Especially since countries other than mine have called out a complete lockdown. You can't just walk into an Apple store right now or call a techie friend over.
Chrome and Firefox, as well as Microsoft, have announced that they will only distribute stability fixes to prevent people working from home from having trouble.
In any normal year, I'd say "shit happens" (or "that's the risk of buying Apple", given that they don't even offer to do pickup of your >€2000 machine like most businesses selling laptops in that price range do). Right now, any disruption in computer performance is debilitating.
Apple needs to confirm these cases ASAP and/or pull the update for the devices affected. Apple isn't the only one releasing bricking updates by the way, Samsung has pulled an update for their A70 phone because of bricking issues two days ago.
>For some consumers, if recovery mode doesn't work that might be the end of line.
If you want to go by that rule, for a large number of people simply getting a virus would mean their computer is bricked. I think it's safe to assume "bricked" means it's a hardware level issue.