>>45853465U-turn is generally superior to Flip Turn on special Water types because the extra damage (often invalidated by Water resists being the main things that will switch on you) isn't worth having to worry about the odd Water immunity making you lose momentum, which especially applies in Doubles since Storm Drain can redirect.
So no, Flip Turn would have barely changed anything. To be good Inteleon needed a good ability, Nasty Plot or more coverage.
