It's clearly stated in the tech specs the allowable ambient conditions; "Non condensing" is clearly spelled out. If that term is foreign to a potential buyer, due diligence requires the buyer research it to understand it. You agreed to the terms and conditions which signifies you understood them.
Apple can only so much to protect its products from inappropriate use with proper engineering standards, premium materials and the offer of extended warranties. No electronics maker does it better at the cost points provided. After that, knowing the buyer understands what has been bought (remember, the user agreed to the Ts&Cs) and its limitations, responsibilities fall on the buyer.
There's really nothing else to say here ... good luck.