Sometimes battles ended very quickly, in just a few moments or a single attack, perhaps even an entire war could end in just an hour or a few right words.
However, more often than not, in such a case, the original goal never changed. If it was possible to get the desired result quickly, there was no point in thinking of other options or time to better understand what was going on.
Nitra and Liang were in no danger of such an outcome, as they had already reached a point in their long fight after which their relationship would no longer be the same.
Of course, Alucard had a significant impact on the decision Nitra would make, but he only helped her make sense of the situation. In the end, it was impossible for her to believe that her plan was wrong and there was another way. She didn't believe that there were situations that couldn't be calculated.