Well, it does send you others hole cards at some point as you see them at the end when people get called. Now its at the end of the hand so you're past the point to cheat anything.
Another concern I had was the site itself cheating by placing robot players at the tables or some evil programmers inserting code to sway the hand in favor of their set-up person. That would be very simple coding. Who knows what regulations are in place in these off the wall locations where the games originate.