Yes. That's exactly what I was trying to get at with my 'everywhere and nowhere.'
Yes, I know the point of joint locks is to inevitably control the attacker's center.
The term "joint lock" is a misnomer. It should be "body lock." The emphasis isn't the joint, it's the entire body.
I guess it's just the people I've trained with. No Aikidoka has actually ever applied a joint lock that really takes my center. It's all localized and focused at the joint.
The only times I've had people actually throw me or lock me up because I had no choice in the matter were in two other arts. I've just never encountered an Aikidoka who truly applied the principles which they had learnt in order to execute a throw or lock.
It just baffles me.