I very much get the sense they're dismantling the furniture and using it as firewood. It feels like the sort of place that very well could fire the entire IT staff and give that responsibility to the CEO's nephew and claude code instead. Not saying that is what transpired, but I wouldn't be surprised if it did.
A backup shouldn't be considered working until a restore (plus checksum of the complete file tree) has been successfully tested.
You outsource it, then you file a P4 ticket to test those "just in case" that will be done in a future sprint (never), but all of you more or less trust the outsourcing partner actually has their shit together.
Personally I wouldn't trust any backup system without also testing and verifying the restore, but I've worked in plenty of places where their main database is automatically backed up by AWS or whatever, and no one cares to test the restore because "Why would it be broken if it's provided by AWS?!" and similar opinions drown out the more careful ones.