Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
Though the delivery process was understandably slower than usual amazon standards, the package in itself was very good. The product was nicely packed in a box along with a brochure of similar items. MMTC PAMP seal was also there. You can buy it without any worry. The product is truly worth its value in gold ;)