Almost certainly. I would also expect contamination (finger oils, for example) to be a big issue.
(Source: I worked on and designed equipment for commercial scale-up of a nanoscale superhydrophobic coating process)
(Source: I worked on and designed equipment for commercial scale-up of a nanoscale superhydrophobic coating process)
Water doesn't dissolve oil, although it could help mechanically remove it -- but if the material is actually olephilic or neutral it could be an issue.