The Thing more suffered from when it was released that year rather than the climate of that period. A full on horror movie in the summer was risky even if a movie like Alien did well some years before.
And as far as War is concerned, I think the ending was fine, the lead up was bad after such a great first half as the movie played out like an adventure film. Then it went prison escape route with an underdeveloped Woody. I like the movie but the overall story was very cliche and in some spots generic. That's me tho.