Yeah, especially when you consider that Apple likely uses NetPromoter as its primary metric for customer satisfaction. NetPromoter only sends out surveys to verified purchasers and the question is a 1-10 scale for satisfaction. Anything 8-10 is “satisfactory”. This is not only plausible but likely and is why the rating is so high. There wouldn’t be very many anomalous responses of people not understanding the question because the question is literally “Would you recommend the iPhone (whatever model) to friends and family?”. That’s not a hard question to understand.
This is not a seriously written article.