It’s not the steps they are doing, it’s the number of female celebrities compared to male. There have been two male only couples and two female only couples over the last few series.
Normally, the number of male and female contestants is equal, at most only a difference of 1 where there is an odd number. Last year, though, there were 6 female celebrities and 9 male. If this year a drag queen is counted as female, the number of female contestants could be even lower.
Strictly tends to help celebrities with their career. Women already struggle to maintain a career in the media as they get older - removing an opportunity to be on strictly, which could help them maintain their career, because a male celebrity has taken a female space is another disadvantage to them