First, you really need to play the game to not get far too spoiled! ...if that hasn't already happened.But your third point specifically, why is it bad optics. Because of the brutality? Isn't that a staple for the series and still prevalent in the reboot and not just reserved to these specific female enemies?
But yes the brutality is pretty extreme at times and not really surprising to see in this serie. One person got banned trying to push the agenda that there should be no difference for a male gamer if a mistreated/killed character is man or woman since female gamers do terrible things to men in games all the time without problem etc. But I can tell you this... Few could've handled seeing Kratos fight a female "The Stranger" (don't look it up, play the game) the same way. That's just how it is. It wouldn't work. The extremeness in the current state served to exemplify the strength of both Kratos and "The Stranger" though and was somewhat neccessary, and even if there is an imbalance I still think the game has progressed a lot from the previous games.