Regarding flat repair: (setting aside tubeless has sealant protection for minor punctures) if you do get a puncture flat, isn't the process of inserting a plug and re-pressurizing much faster and cleaner than a tube replacement (even discounting time it takes to locate the puncture so you don't immediately flat again).
For catastrophic tire damage that isn't repairable with a plug, you're facing the same problem of replacing a tire (if you brought one).