There has to be winners and losers in any major transformation, especially something that is as universally influential as health-care funding. I wouldn’t be surprised if this strategy is a means of immediately mollifying those (justifiably) dissatisfied with Obamacare, while delaying the blowback for those adversely affected until after the 2018 mid-terms (at which time the GOP would have at least a mathematical chance to get a filibuster-proof Senate).
Unfortunately, I suspect Republicans in Congress will feel a lot of heat as millions discover that the Obamacare they hate is the Health Care Act they are relieved to have now. Also the programs that were put in place by various states have names that have nothing to do with “Obamacare” but everything to do with what is in “Obamacare” by other names.