And the time it takes to --reindex-chainstate may not be fast but not as slow as --reindex or IBD.
Agreed, but IBD secures full guarantee of pure untouched copy of blockchain at your possession.
After my case I'm sold on the keeping of backup copy of the blockchain. I have acquired 2TB SSD and attach it to my node from time to time to keep this backup active.
I set a folder backup to run once a day. Restoring will leave only one day to sync.