If his answers outlined here are consistent with what's known about him by law enforcement agencies, then yes - it may lend credence to his possible innocence. But if it's NOT - which appears to be the case based on the details of his extremist history outlined in an earlier article - then his answers instead suggest that he had either been warned of the agent's motives ahead of time, or was independently leery of what they might be. But the fact that he had the foresight to record the conversations tends to support the possibility that he had been tipped off.
Jerusalem suburb of Even Sapir evacuated as wildfire spreads (Haaretz)
from the article: Friend of alleged Jewish terrorist: Shin Bet is panicking