is one piece episode 176 filler?

The battle among Zoro, Wyper, Gan Fall and Ohm has begun. Ohm told them only if he is defeated can they proceed.

Zoro mentioned to Ohm that from his speech, he is a Priest that serves God. Zoro further told Ohm he is only interested in the gold and nothing else.

Gan Fall mentioned to Pierre that they would have to defeat Ohm for them to move forward. Zoro mentioned to himself that the Python did nothing but followed him to the ruins.

Luffy is shown lamenting on how weird the cave is. Wyper mentioned to the other men that they may as well die.