[rada]

Your fault attribution is mis-informed. From an MIT interview with Valentina Ponomareva (http://web.mit.edu/slava/space/interview/interview-ponomarev...):

Q. What was the fate of the women's group after Tereshkova's flight?

A. It is well known that Korolev's attitude toward the presence of women at work and especially on the launching pad was very negative. He believed that on a launching pad, like on a ship, a woman brings misfortune.

(Korolev was the head of the Soviet space program at the time).

[jkot]

... and Kruschev was the one who choosed astronauts. Same problem was with Gagarin versus Titov.