"not afraid to fuck up anything" likely refers more to the ability to rollback the system to any (non-deleted) previous revision of the system configuration, directly from the bootloader, which means you can easily recover even from a broken kernel.

This applies regardless of whether you are packaging/updating something in the package set yourself, or using something that someone else packaged.

> That's because someone already did the porting and testing for you

The same happens on all package managers...