Nobody is so thorough at documenting that their job is 100% documented and the documentation is fully up to date.
You think Jim, who's been training the new hires on the factory floor for a decade, who knows all the tricks to making this fit together at wiget factory even when the process instructions are vague, has documented everything?
Could document everything?
Just be cause digital records are present doesn't mean they're complete, up to date or accurate.
Institutional knowledge is a thing, and it's very valuable. You can't wave it away and say we're in a digital age.