is one piece episode 185 filler?

As the episode starts, we are back to the Enel and Nami stand-off. Enel tells Nami that she obviously can't leave the ship "safely" now that she has told him all those things.

Nami thinks to herself that she has no regrets about doing that because even though she knows she can't beat Enel, she can't stay on the ship either. Enel shocks Nami by asking her if she is counting on the "two rats" that have snuck aboard (meaning Sanji and Usopp) to save her.