As someone who loved it, why I think Dawntrail didn't work for everyone [Spoilers]

[Wyssahtyn]

Lyse simply inherited Conrad's liaison position. She didn't become leader of the Resistance but she was a symbolic figure due to her last name.

Heavens Weep MSQ

CONRAD

It's all right, Lyse. I've lived long enough. But listen... I want...I want you to lead the Resistance in my stead.

No...no, you won't. Everything we've built, everyone we've brought together...I know you'll show them the way...

You've got it in you, Lyse. Not because you're Curtis's daughter, or Yda's sister, but because...because you're you. Because you're you...

[thegreatonemal]

Heavens Weep MSQ

CONRAD

It's all right, Lyse. I've lived long enough. But listen... I want...I want you to lead the Resistance in my stead.

No...no, you won't. Everything we've built, everyone we've brought together...I know you'll show them the way...

You've got it in you, Lyse. Not because you're Curtis's daughter, or Yda's sister, but because...because you're you. Because you're you...

You seem to have forgotten Conrad's role. He's only commander of the Resistance cell in the Reach. His job during the war was as liaison between the other resistance factions and the alliance. Which is what she steps into until the end of 4.1 where she's given her actual leadership role of commander of forces in the Fringes.