That bitty Aerith never did bother to mention, did she? She screamed at the top of her lungs, "She's safe." But when she's rescued later, she doesn't even seem to remember that other horrible stuff happened aside from her being kidnapped. If Wedge died, she could have mentioned it. Barret or Tifa could have thanked Aerith for saving Marlene or she could have asked about her and her mother or something. Dyne is the only other event that triggers a mention of Marlene at all whereas the rest of AVALANCHE warrants not so much as a whisper in the wind. My theory is that Kadaj is Biggs, Yazoo is Jessie, and Loz is Wedge apart from my other theory that Kadaj is J-Life, Yazoo is J-Death, and Loz is J-Birth.