They also said it was more manouverable and in many ways it is. You have to keep in mind that a component of both manouverability and ability to turn is the ability to rotate your lift vector, i.e. roll which the 190 excells at. No where in that clip did they say it could sustain a flat turn better. The other key here is "at any speed". The 190 remains very controllable at very high speeds.
So I think both they and AH are correct.