In the circumstances at that time, even with Zhou Tian's nature, he inevitably felt some impact. After all, Zhou Tian was at his weakest state, and having lost all his rule-based strength, what ability could he use to handle those vine-like plants? It was like an unarmed ordinary person dealing with a giant python over ten meters long. Under normal circumstances, Zhou Tian was simply unable to defeat the opponent.
In fact, when those vine-like plants launched their attack, Zhou Tian indeed had no intention of engaging in a hard fight. Zhou Tian knew that given his condition at the time, it was unlikely he could defeat those plants. So, clearly aware of his slim chance of victory, Zhou Tian hadn't even considered a hard fight.
Thus, given the circumstances then, upon discovering those plants and sensing their hostility, Zhou Tian immediately chose to retreat.