Yep this is understandably frustrating, but is not the fault of fibre. If it was copper you’d still have outage, or worse degraded service that would take an age to resolve after the incident e.g. getting 1Mbit instead of 16/24Mbit on adsl2 until you raise enough stink to get someone to look at it.

At least with fibre if it something is wrong then it’s very clearly broken and someone will go and look.

And yes, in future if you are with the big telcos call them straight away and they will ask if you have a mobile with them and very quickly give you large data to hotspot with for free as a temporary solution until it is resolved.