Geert has been very consistent for 2+ years that the unvaxxed will be fine.
He's stressed that over, and over, and over.
Are you sure you read his post correctly? Can you link me to the post where he suddenly does a 100% about face on his consistent messaging?
He's said many times that the unvaccinated will get sick, but they'll be fine because their immune system is capable of updating the virus database.