I think there is a distinction between technique and efficiency. XC sking and speed skating definetly require more technique than cycling but I think all sports benifit equally from improved eficiency (improved work output for a given energy input).
I have to admit that I have no track experience but my former coach had plenty including a WC bronze medal in the kilo. She was the person who told me coaches in europe were finding that if an elite road racer could last more than four or five minutes in a pursuit they would generaly win the race over the track specialist. I dont consider her word to be gospel if you have better information I'd love to hear it.