I dunno. I took the comparisons to Bush as strictly tongue-in-cheek satire.
Even so, no mass-appeal movie is made in a vacuum. The real-world political situation is one of the things that serves as a context and/or subtext.
In the '50s, the Cold War and the Red Scare was the environment for producing a lot of alien invasion flicks, esp "Invasion of the Body Snatchers".
The late '60s/early '70s spawned a lot of anti-war/protest movies in response to the war in Viet Nam, even if Viet Nam was never even mentioned.
The '40s and '50s Noir movies were a result of guys who had been to WWII and came back to find the world different.
So, it is totally appropriate at least to mention stuff like that in a movie review, as long as the reviewer doesn't point to it and try to use it as support for the correctness of their own POV.