I think those bars and the name "Candybars" (old school trick) is appealing to a completely different market segment than actual hardcore flatlanders. They're for the bike builders and other guys getting back into BMX going for the retro look that seems to be coming back (Haro Retro line).
For Flatland, just take a look at the Fenix bars that had the same crossbar bend. I've hardly seen anyone ride them and they are still on sale at FF.