is one piece episode 198 filler?

Vice Admiral Jonathan, wonders in his office as to the locations of the rest of the Straw Hats and gives Lieutenant Commander Drake a direct order to interrogate Zoro. In the cells, Zoro was about to take a nap when Drake shows up and demands for Zoro's guards to open the cell.

Drake begins asking questions as to how many of the crew there are, how did they infiltrate the stronghold and such. Zoro truthfully replies that they came from heaven via an octopus balloon.

Drake does not believe him and warns him not to underestimate the marines.