Actually, the situation had not really crumbled.
Xiao Lin was trapped in the house by Old Fang's family, it was unknown whether he was dead or alive, but there was one known fact, Xiao Lin currently had no way of doing anything, what was left was actually the four people suffering along with Fang Wenhai. Fang Wenhai was the offensive party while Su Bai and the other three were the defensive party, Su Bai and the other three had the advantage of time.
The bombardment of lightning by Fatty had created an opportunity for the others, allowing Gyatso and the monk to seized the opportunity to retaliate, although they were suppressed once more by Fang Wenhai, with Fatty;s many tricks and backup plans, everyone was clearly aware that Fatty wasn't easily devoured, they may not succeed this time but there were still many opportunities the next time.
Fang Wenhai's days were numbered, he did not have much time to scamper.