I assume you're talking about the "Cadillac tax" on more generous insurance plans. Its implementation has already been pushed back to 2020 and there's a pretty decent chance that it will never see the light of day.

The problem there is that the subsidy money has to come from somewhere, and the longer that tax gets pushed back, the more we have to do other shenanigans to come up with the money: borrow more, raise taxes elsewhere, etc. As it is, the subsidies don't really help folks as much as was planned, and even with the subsidies, the costs are rising quickly. It's a runaway train at this point: costs rise, making the subsidies insufficient, so the politically expedient thing to do is to expand the subsidies, which means that taxes must rise to pay for them.

>As it is, the subsidies don't really help folks as much as was planned, and even with the subsidies, the costs are rising quickly.

I don't think this is in spite of subsidies but beacuse of them. Just like the epipen mess, the less of a bill the customer sees the more you can raise it.