Stinger Callback tyres for new vehicles MY21

Hello dear Stinger fans, I’m new to the Stinger fan community and found my Stinger MY21 on Thursday in Panthera Metallic. Now to my question. The Stinger stands well there, but I noticed that he reared new tires after 750 km. The explanation of the dealer was that all delivered MY21 tyres had to be mounted from the factory and they had to be exchanged. Since I found nothing on the internet about it, the question to you whether anyone heard that too Thank you very much in advance.