Hm, not sure I agree with all this.
Full on girl on girl could have been titilating but are we just being a bit sexist 'cause they're both women? Stella's had one shag the whole time she's been there. A shag and a kiss. I don't think much would be said about either if she were a man. Sex and love are part of life and we're seeing snippets of both from lots of characters...
I think it's good they've used an attractive looking man for the lead role. It's unusual to have a serial killer that isn't weird looking, or an ugly loner. Again, we're applying our judgements here - judging a man for being too good looking.
'We're actually supposed to sympathise with a serial killer now.' Are we? Don't remember being told that. If you feel sorry for him because of his alleged tough past then, again, that's your judgement. You never know, he could have been in children's homes or centres having committed an awful crime. He might not have been in them at all...
There are an awful lot of blanks in this series. We are filling them in with assumptions, prejudice and judgements.
And if you think it's mysoginistic - you think the show itself is mysoginistic? Rather than it being a show about misogyny?
I still think it's an excellent show. It's entertainment after all.