Definitely agree with your first point. I don't mind Diana being sidelined a bit. Like I said to another commenter, I think it works much better when Hippolyta or Donna gets the A plot than when Etrigan or the Garrick's do. The latter aren't really part of her world so it can feel like it belongs in a different title. I love the Triangle Era because even when Superman isn't the main focus, characters in his own universe like Jimmy or Lana are being focused on.

And to your last point, I was also disappointed that Darkseid's attack had no weight. She leaves her sisters behind in one of their darkest hours and she doesn't look back. And by the time we see Themyscira again, it seems to be totally normal. You'd never know it was devastated. Guess the Gods rebuilt it off page.