I think if folks really want the feature of a physical SIM card they have other phone options out there. Maybe it's something available from Samsung or Google? Personally I think going to another country and buying a disposable SIM card and hoping I don't lose my other one and all of these other things is much more of a hassle than something like landing, turning off airplane mode, and then just selecting a plan that works for me all set up with Apple Pay that I could have done before I even get off the plane.

Then again, just using a carrier that has global coverage would be even better.