This article from the day before uses women and mums too. There’s one “parents” when I think they mean mothers, but I only noticed because I was looking for it.
https://www.bacp.co.uk/news/news-from-bacp/blogs/2022/4-may-the-power-of-connection/
Compare that to the other link at the bottom of your article: the one written back in January uses “parents” throughout, where it seems that probably, some or most of the time it is referring to mothers. There’s one use of “women” and one of “mothers”, but both are in quotations from other people.
“Jo Holmes, our Children, Young People and Families Lead,” obviously didn’t get the memo! Long may she continue.
I hope it is a sign of genuine change. Reading the January article, the language is jarring in its clumsiness and lack of clarity. There’s a significant difference between helping mothers and helping parents. Good luck, OP.