User blog:LLight/Failsafe American Flag

After watching Failsafe again and reading the "goofs" section in the article, I noticed one of the goofs is that there were 48 stars on the flag instead of 50. Is this really a goof? By the time we see the American flag, it was established that Megan's subconscious mind had taken over. From what we know, Megan's primary source of information on the human race is from classic sitcoms. I was always terrible when it came to history, but if I am not as big a fail as I believe I am and too lazy to do a google search, Hawaii and Alaska did not become states until the late 1950's.

With all that said, is it really a goof, or some epic pedantic addition on part of Greg and co.? Or am I totally wrong and of total fail?