Generic or Product-specific EPD ?

Dear All,​ An international insulation manufacturer has developed an EPD for all its products consisting in ​rock wool insulation. The plants chosen for the analysis are located in different European countries, and represent the average technology in the company in terms of energy use and emission and the application of environmental technology. Data are weighted by production volume. According to the EPD, stone wool products are manufactured with the same underlying technology and pass through the same production processes in different production plants. It doesn't match with the guide definition for generic EPDs, but I'm not sure if it could be considered as a product specific EPD. As an EPD developed by a single manufacturer for its products ¿Can this EPD be considered as a Product-specific declaration​ for its ​rock wool insulation​ products​, even if it is not for a specific ​production plant? Thank you for your help!