Shany I suspect your response comes from an assumption that Grappling inherently assumes a contest of strenght or resistance. At high levels bjj is often about non resistance as well. But based on Kevins definition Aikido certainly qualifies as an art where you are using your body to control and redirect uke's. Hence grappling.
In some sense then Aikido is grappling. I think though in the context it usually comes up on this board "grappling" is referring to practice with live training as a component as well.
Well yeah, if someone categorize grappling with joint locks / distance / being better - faster - stronger.
than I guess you can say Aikido has grappling elements in it.
I think that if you can resolve a dispute without any of the elements said above by other aikidokas than I would strongly say Aikido is a non grappling art, since not all aikido techniques ends/needs joint locks or must have dominance in them.