Because it’s the character we know? Later played by the actress who originated it? Hell, she died in FC. That should have changed the Borg completely, but because it’s VOY, we got reset button and, what, clones?
Also, if anything, it’s misogynistic to make the new Borg mouthpiece a woman, the ENT Sphere Builders all women, *others. Why are all the villains girls?
(*The Female Changeling is iffy. Initially she was a temptation for Odo to remain home (though why even make females among the “drops of the ocean” Changelings is puzzling, but I guess they couldn’t have it be an asexual character played by a man or it’d be too “gay”). Then she returns as head evil Changeling because she’s more temptation for Odo anti Kira, and because she’s a familiar face to the audience.)