Another thing comes to mind: making the pills a lot cheaper, might avoid the issue of health insurance, especially government mandated, or provided, insurance, paying for them, because that seems to get a lot of knuckle draggers upset.
I suspect the OC pill that’s been approved for OTC availability is a fair bit different from those early formulations. As someone who started on The Pill a full half century ago, I can’t see myself using them back then without some degree of GYN management.
From what I’ve read 90% of women taking the OTC formulation do so without complications. Make doctors available for those that need them, but don’t send everyone to a doctor for a prescription if it’s not necessary.