I guess you meant 88 minutes for the men? (the kilometre rate is correct).
As far as I know the winning times for men/women were 90/65 in that era (the women's winning times in both 1983 and 1987 were in the upper 60s). My guess is that they used a similar distance ratio to that used in previous WOCs but without considering the different terrain - the men had lots in the green but much of the women's course was in the white in the central part of the map (which was much faster in 1985 than it is now).
It would have looked even more embarrassing had Annichen Kringstad had a decent run - she was all over the place and probably would have gone sub-50 on a better day.
Fixed now. But that's exactly what I was thinking, that the women's had been a bit short and they didn't get as much of the seriously challenging stuff. Still wish we'd known enough about orienteering back then to go and 'watch'.