Would you recommend against laying a cork floor in a bathroom?

If the existing flooring is planked, a plywood layer of at least ¼ inch thick is needed that the cork tiles can be laid over. Porous surfaces should be sealed with a primer. Cork flooring might not work well in wet areas like the entrance hall and bathroom. Buy already sealed tiles that will protect them from dirt, moisture, water and condensation. Buying natural tiles will require an extra step of sealing.

lay 6mm ply on the floor will be fine