Yes, I understand that it's a polite and politically correct way to put things without stirring up drama.
But I still saw the implication that she's stopping not because she wants to stop, but because of some irreconcilable disagreement with the company on how to proceed.
Ignoring whatever the nature of the disagreement may be (I'm not interested in unhelpful finger pointing), my point is that the reason for this situation lies within the relationship between her and the company.
She just wants to leave the company.
Leaving the character is just an unfortunate byproduct of that.
Am I wrong?