Should all kidney transplant patients be started on statin therapy post operatively given their increased risk of CVD?  

A kidney transplant is not an indication for statin therapy per se. The 2018 cholesterol guidelines list CKD (but not ESRD or Transplant) as a risk-enhancing factor. I would guide the decision to use statin therapy based on the patient's risk as assessed for non-transplant patients. Having said that...