"enterprise class" is a standing term in HDDs for more expensive and more reliable drives, and literally what WD labels those drives. It doesn't mean "small companies never have workloads that need those" (although many might want to wait for cheaper disks of the same size), and the parent didn't suggest so. It seems a bit weird to complain that they worded their answer to restrictively for your liking, instead of just expanding with your experience with specific examples.