That wasn't wavering. In her original state, she didn't have the resolve to die. In modern warfare, captured enemy senior officers are protected by war conventions, generally without a risk to their lives.
However, the dissatisfaction and struggle in her heart turned into a compromise under pressure. Moreover, she found countless excuses for this compromise within her heart, even finding many noble reasons.
Since failure is acceptable, since the outcome cannot be changed, then compromise is only natural. Bringing back hundreds of thousands of soldiers in this meticulous layout and knowing about the Fei's invisible warships doesn't seem like a complete loss.
"Our invisible warships will be discovered sooner or later. It's impossible to keep it hidden. This information won't matter much in the future, but at this moment, it's crucial for Hamfrey. With this information and Hastings' meticulous layout, he can report to the country, and maybe he can even pin the blame on Mikami Yuto."
