With throws like that - for the reasons you mention - they become highly situational. If the peroson knows what's coming (either because they read the movement or because they know the drill) they're very easy to stymie. During movement, however, if the person doing the throw knows how to feel the structure as they move, it's possible to recognize the opening and use it. They are reliable in a very limited situation - not a high-percentage movement. With someone standing in structure (like in the second clip), they shouldn't even be attempted - he's essentially trying to throw him through his own leg.Agree with you 100% there.
In Chinese wrestling, we have a move "float" that look like Aikido technique.
My student can't flip his opponent if his opponent doesn't want to. The reason is simple, he only controls his opponent's wrist joint. His opponent's elbow joint is free. Also both of his opponent's legs are free.