Shippou: You're mistaken about the out-of-pocket maximum and also about required treatment at the emergency room. And about deductibles.
Out of pocket maximum is the maximum amount that you personally can pay out of pocket in a given calendar year and is set by your contract. In nearly all policies (though not necessarily all) the deductible counts towards the OOP max, as do copays and coinsurance rates. It's one of the few insurance features that has a name which realistically indicates what it is.
Deductibles are the amount that an insurance subscriber pays until something changes in the benefit payment scheme (so, an insurance plan might have a coinsurance rate for the subscriber that is 50-50 until the deductible is hit, after which it changes to 80-20 until the OOP max is paid). Additionally, deductibles are not quite blanket values; there are a lot of policies that offer things like free preventive care visits whether or not the deductible has been met in a year, for example. Also, having a policy with an insurance company gives you access to their negotiated rate with a health care facility, again regardless of deductible (so it reduces your bill before any charges are billed to you).
Nothing about EMTALA has changed with regards to treatment at emergency rooms. It would be unverifiable in any case (the ED triage staff can't possibly contact your insurance company to see if some clause in your policy has been satisfied while you bleed out in the lobby). The ED cannot turn you away under any circumstances, though they can determine that you're "stable" enough to leave without a lot of fuss.
Finally, nothing in the information you posted is any different than the health insurance system in the US a year ago, five years ago, whatever. Insurance policies have had copays, coinsurance rates, and out of pocket maximums for a long, long time. And the gradient between plan medal-levels isn't new either. A bronze plan will have a lower premium, but higher risk exposure for the subscriber, compared with a silver, gold, or platinum plan. That's always been the health insurance tradeoff-- cheaper monthly rates to be a subscriber and higher risk, or higher cost per month and lower risk. The numbers you listed reflect possible expenditures. If you don't use any medical services in a year, you pay nothing beyond your premiums.