I know you're joking but, related: I tried opening a Webex meeting on my phone which told me to download the app. App downloaded, try to open meeting, app opens...and then opens the meeting in Firefox.
I really hate apps that could be a website (hint: most of them).
Technically speaking, RAID is redundancy not backup. A proper backup is an archived copy of the data stored not stored in the same logical infrastructure as the primary data.
With a RAID you can swap in a new drive if one (or more, depending on your RAID#) drive in your RAID array dies. If enough of your redundancy in a RAID fails, you will lose data.
With a proper backup you can restore the entirety of the RAID array even if the original data has been physically destroyed.