Walk with me for a moment.
The idea of Cissnei teaming up with Zack doesn’t make much sense to me if he’s still ‘dead’, BUT. You know who just so happens to have a deeper relationship with Zack, is also a Turk, AND could be in a ‘death’ state aka coma right now?
Tseng.
Look, whether one enjoys this remake project or not, the games are definitely not "true to the original" Final Fantasy VII due to the deviations they made from the original story. It's already been announced that Bone Village is removed from part 3.
There's just no need for Square Enix to say this when it's obviously not true. The audience is already split on this, anyone open to the new path the remakes have taken is likely already in until the end at this point.