Spock had already been prepared to treat these missions with caution, but a reminder of danger and potential death from someone he'd once temporarily lost is a reminder that will stick. He doesn't want to watch Jim die a second time.

"I intended to look into all of that before fully committing myself to assisting them. I question whether they are benevolent in their offers or simply desperate for our help."

He finds himself accepting that many beings do not behave logically or honestly, but at least he is here with no less than one person he knows he can trust. Together, they can figure out the truth behind all of this.

"How much power do they wield unchecked here?"