A winter package should be available as an option on every model sold in a cold climate, even the lowest 'S' trim level. People who would never consider a 'Platinum' would certainly pay $500-600 for a solid winter package in areas where it gets cold.
Why should a "top trim" sold in Miami FL or Tucson AZ get a winter package at all? If it is less costly at time of build to just include it with 'Platinum' than to delete, then I certainly get that! But that does not excuse full winter options are not being available on lower models. Note to Ford - sell more cars to the ladies of the North and the Mtn. West who can't afford a 'Platinum' or 'Titanium' by offering them a solid winter package as a reasonably priced option. Guys like it too - but it is more of a deal breaker with the ladies.
I know it will be what it will be - they will put them together in the most efficient way possible, but they better keep an eye on what competition is doing if they want that share of the market. I am pretty sure that Subaru and other Asian makes offer heated cloth seats. Leather is prone to cracks in the extreme cold when it gets a bit of wear, so rugged cloth is the material of choice for many outdoor enthusiasts.
I agree the winter package should be available on all trims.
Ford does offer cloth heated seats. In Canada.