Like this?
Don't all Aikido systems have some level of commonality?
But the train isn't grappling anything. We wouldn't say the train is performing grappling because its moving in a straight line.
No touch certainly doesn't exist in Judo, Bjj, Sambo, Wrestling, etc.
Well the person in those vids doing the no-touch stuff is Nobuyuki Watanabe, and he's one of the head instructors at the Aikikai Honbu Dojo in Japan. So its not like he's some kook who is part of a splinter group of Aikido. He's one of the direct disciples of Ueshiba, and is an 8th dan.
And of course Ueshiba himself performed such techniques as well;
But that stuff is certainly not grappling.