Given that the infrastructure description included the DataTalks.Club website, this resulted in a full wipe of the setup for both sites, including a database with 2.5 years of records, and database snapshots that Grigorev had counted on as backups. The operator had to contact Amazon Business support, which helped restore the data within about a day.
Non-story. He let Terraform zap his production site without offsite backups. But then support restored it all back.
I'd be more alarmed that a 'destroy' command is reversible.