Ennis-Hill, yes, my bad too.
I think because she's s popular in the local area, she's perceived as a sporting personality (rather than as a media/political one), she's been very vanilla and safe in what she's spoken about hitherto (totally understandably and rightly so), and she is populist as well as popular - men and women equally admire her and don't see her as threatening or aggressive in any way.
She's Emma Watson-ish in her universal, unthreatening appeal. I think it's helpful, broadly, when women like her pick their battles, and once they've picked them, make their case calmly and unequivocally. It doesn't detract from what more outspoken feminists do, it just helps people on the margins say, "Yeah, I'll agree with Jess/Emma."