Planets are abundant, and it's not like each one is fated for that destiny, right? Sacrificing one or two doesn't matter much, but if destroying this star could potentially lead to the disappearance of half or even more of the lives in the galaxy, that's not something Finn Lewis and his team could handle.
In fact, Lucy Watson's words just now were implying that, based on her original situation, it was very likely that this would happen. The explosion of this star would trigger an unnamed chemical reaction with the preparations made by the enemy in advance, causing the explosive power to far exceed original estimates.
Lucy Watson did not continue explaining but instead bowed her head to work on her battle plan and study the star maps. However, after more than half an hour, when Luna Starfield had gathered all the information for Lucy Watson, Luna immediately brought over a scientist, who then summoned many other scientists.