Ken does admit in the video that the round leg main gear were sometimes prone to wiggle a bit if the alignment was not perfect. He does down play that as not a real problem.
I'm happy that Van's is listening to the customers and has taken many nice steps forward with the RV-14 (they never refer to it as a -14A?). Better canopy design, steps look more solid, pre-fabbed harness, better baffling and a steel support for the oil cooler.
I'm happy with my -9A choice, but I can see where the -14 would have a certain appeal.