Anyone use the bitcoind option “loadblock=“ before?

I have a small network of fully offline bitcoin nodes with an inbound only satellite connection to nostr:npub1jg552aulj07skd6e7y2hu0vl5g8nl5jvfw8jhn6jpjk0vjd0waksvl6n8n satellite service. I had a satellite hardware outage (an overly enthusiastic daughter on a cleaning rampage unplugged my receiver accidentally) and would like to manually feed blocks to my sat nodes.

Can load blocks do this?