If they're legally selling devices in these areas, then yes. I don't see why environment absolves them of any and all responsibility.
Might as well step up and not shirk your obvious responsibility for covering impact events as well, since those occur fairly often in many everyday situations. Let us know how that works out for you.
I think it's entirely reasonable to support hardware sold in 100% humidity central Florida where Apple is licensed to do business (covered under the Magnuson-Moss Warranty Act.)