hahaha… i hadnt heard that quote, but i suppose its possible… 
here’s a mention of water (no boats however) from @Geoffers747’s Q&A thread…
Answering questions regarding water and water physics.
“Re water: We’re working on it! Water is…hard. There will certainly
be water in the game, and we want it to behave in water like way, with
flow, dams, etc.”