Snowy Escape could be good, but would it require Seasons?

I would imagine for those who do not have seasons, there would be snow in this world and this world only. Maybe it's a different type of snow, I don't know about that - but it's kind of what I always figured they would do for a Snowy/Mountain type of EP/GP. That way everyone is covered and can play it.

But, I imagine the overwhelming number of people do have seasons so it won't matter, but why box themselves into a corner when the coding is probably fairly easy to manage.