Hi @Graham494
I don't believe it would affect your Superhost status. However, if you ever wanted to list on Airbnb's Experienced Co-Host platform, it might affect that:
Experienced Co-Hosts Platform
https://www.airbnb.com/help/article/3378
"...Experienced Co-Hosts may be temporarily hidden from the Hosts’ search results on the Co-Host Services Platform if the average guest rating is less than 4.6 on Airbnb. The “Average Rating” is calculated based on the average guest star rating in the last 12 months of all listings that an experienced Co-Host manages, either as a Co-Host or as a Host..."