This is nonsense. Both a horse and a pickup truck can be used to pull a wagon, but no one seriously considers one an alternative to the other.
What you are describing is a hobby item for enthusiasts who want to enjoy tinkering, setting something crazy up and constantly debugging it. That is very much NOT the market of people who buy Synology products.
Synology is not a JBOD RAID. It is an appliance that does many things (storage, services, web access, etc.) and can automatically keep itself up to date with no additional contact necessary. It can be hooked up to a UPS for resilience. If you have a problem there are support forums and online articles. It can be synced to other Synology devices at other sites. Etc., etc.
What you are describing is a hobby item for enthusiasts who want to enjoy tinkering, setting something crazy up and constantly debugging it. That is very much NOT the market of people who buy Synology products.
Synology is not a JBOD RAID. It is an appliance that does many things (storage, services, web access, etc.) and can automatically keep itself up to date with no additional contact necessary. It can be hooked up to a UPS for resilience. If you have a problem there are support forums and online articles. It can be synced to other Synology devices at other sites. Etc., etc.
A pile of RPi is none of that.