I think this is more about deep connection which roshni clearly said when she left that she doesn’t care about relations but about connections, she repeated that again when she died.
For this very reason, it does not make sense to have Kabir bring her back to life, since there is no connection there.
It’s not about who brought her back - for me it would have made no impact if Aman had brought her back because I never believed and still don’t the whole falling in love when one dies concept. That sounds and feels very conditional. So I didn’t care who brought her back, I wanted her back so Aman can then show her he means what he said - the supposed journey of magical love which will confirm connection from Amans end as Roshni’s is already solidified.
Aman bring her back, emphasize not only their connection, but also carries the concept of the story. There is a saying “sometimes, you never know what you have, until you loose it.” And from a few episodes prior the the big laal chand show down, we were pretty much told, it was when Roshni dies, Aman will REALIZE his love for her, not that he would FALL in love with her. So there is no issue about conditional love her.
Regarding kabirs you can’t live without me - is just so Aman suffers nothing to do with roshni. Frankly if he loved her or cared about her then he would have never brought her back to JM, just kept her somewhere else. Kabir is not dumb he has an agenda and it doesn’t feature roshni as a leading lady but him as the king.
It is too cliche and does not love the “connection” theory is Aman and Roshni. And this not the first time the CVs show/indicate deep connections between pairs and then abruptly destroy it.
Ayana coming back with her powers now will be silly given there aren’t any more fights until the end but in the meantime a decent love story with strong foundation is needed.
There doesn’t need to be a fight for Ayaana to have powers. Ayaana already has her powers with or without a fight. But she doesn’t truly know how to use them.
Kabir wants aman to die and what better way than to mess with roshni? We all saw how he was the day he was without her - aman won’t let that happen and eventually roshni will come around too.
The easier way for Kabir, was to leave Roshni dead.
If he misbehaves this time then I won’t support him but until then I am not worried at all. Bring on third or fourth wheel - the story has two people in the end and that’s what matters.