According to sources reported by both Bloomberg and Reuters

The counter-cyclical factor was a hot issue when it was brought about last year - aimed at minimising the impact of market swings. And they moved to remove that at the start of this year.

It's seen as a yuan-supportive measure and the removal at the start of the year prompted some weakening in the yuan. So, the re-introduction of the counter-cyclical measure will likely bring back some added support for the yuan in the near-term.