For years now, I've been making the argument - right here on this site - that Republicans never really want to repeal ObamaCare. Oh sure, there are a few genuine free market conservatives (folks like Lee, Cruz, Paul, etc) who do, but the majority want it to remain. They love its taxes, they love its brand of government expansionism, and if I'm being completely honest, there are a lot of them who love the fact that it paves the way for single payer. In short, they talk a good game about shrinking the bureaucratic beast, but they secretly adore federal power.
That's why they never had an ObamaCare replacement ready. They thought Hillary would win, and they were perfectly comfortable twiddling their thumbs while they waited for what they believed was the inevitable resurrection of HillaryCare. Single payer was going to happen, they wouldn't have to shoulder the blame, and they could pretend they were outraged.