Adam knew it was unlikely for the Lin Family to send an Advanced Cultivator after him and they wouldn't do that to avenge the death of a few low ranked Novice Cultivators, and even if they wanted to, he wouldn't leave them any traces to follow.
Although Adam hadn't faced an Advanced Cultivator or come across one, other than his master, if he used all of his trump cards, he was quite sure that he would at least be able to hold out against an Advanced Cultivator for a minute.
He knew that it wasn't much and didn't mean anything, but that was as a rank 4 Novice Cultivator, so if he became an Advanced Cultivator, he might be able to take on cultivators that were mid-level Advanced Cultivators.
Which was all thanks to the additional stat points that the system provided him.