do you still get insurance coverage if it isnt requested by a physician?
Edit: answered my own question. Per questhealth.com "Tests purchased on questhealth.com are only for individuals who intend to pay directly for testing and do not want to submit a claim for reimbursement under their health insurance. "
You can still submit your own claim to your health plan even if the provider doesn't do billing. They may or not pay depending on coverage policies. You can also probably use an HSA or HRA to pay for these services.
If someone wants bloodwork done, to try a drug, or change dosage, it is a faster way to get an appointment.
If they want to get a general inspection and tune-up, it seems less fit for purpose.