Yeah, its a shame that the Tower ended up being resolved (more or less) amid the mess of Doomed. I assume Pak will eventually come back around to Ghost Soldier and the Tower, there was way too much talk about them for their story to be finished so soon, but it would have been nice to see those major moments play out on their own stage rather than as a side-note in a crossover.
Never liked the whole "fridge" thing. Alex was designed to die. It was Kyle's "Uncle Ben" moment, when he finally started taking the ring seriously. Its a lot like the hate Perez got for Terra. Terra was designed to be a traitor from the very beginning; her betrayal of the Titans was the reason for her creation, yet fans thought Perez had somehow ruined her. Same with Kyle's girlfriend. She was always supposed to die, it was always meant to be a traumatic event in Kyle's life. Her purpose was never more than that. Alex was not a female character wrongly treated, she was a narrative tool that served its purpose.