The problem is that when Trump and the Republicans get out there and try and sell this bill they over-promise to an extent not seen since Obama's selling of Obamacare. Trump gave an interview with CNS where be began by condemning single-payer but then ran down an impossible list of promises that the GOP bill will fulfill. Will substantially lower premiums while at the same time protecting pre-existing conditions. Provide better coverage for low-income Americans and make sure that everybody is protected. Stabilize markets. Restore choices. Over and over and over again on things that they flat can't do or which they are hoping will happen. Lower costs. Lower deductibles. They are promising the moon with no clue on how to deliver. The way they are selling it is a big mistake and not a big misstep.
You hit the nail on the head.