Itsafreakinpanda

This might have already been discussed, but after reading through all these I wondered something. IF Chana is the herald that died (and assuming that she died the same night that's shown in the prologue for Stormlight 5), and IF she also went back to Braize (assuming that even though the oathpact is broken, that part still worked), is it possible that SHE was the one that broke instead of Taln? I know that they state he was the one that broke pretty explicitly, but is it possible that the fused and Odium just let everyone think that? OR Could Taln have broken BECAUSE Chana was suddenly on Braize, but she couldn't "break" and start the return (because of how broken the oathpact was, they had managed to pin it on Taln, making him the one who had to make the decision) so she would just be suffering endlessly. Taln understands this, and chooses to break to end her suffering?