But when you will get more ikkyo under your belt you will observe, that CT is using very wide circles. This kind of movement is not locking joints at all. Normally you can't lead anybody with such movement if he doesn't know what to do, if he doesn't have idea that he must follow nage.
For sure, you can't lift anybody on air with such movement.
So, the real connection nage-uke doesn't exist and the successful throw is only possible when uke jumps by himself.
Speed of execution of technique has nothing to do with the necessity of flying in the air, attacker also can be very fast
and match his movement with nage to redirect such large motion with no effort. That what we call 'harmony'
So all these large-motion techniques can be safely received using normal rolls forward or backward.
I will pretend that I didn't see the experience comment
You are right that you can't lock joints at that speed but that doesn't mean you can't move your uke by working on their balance, while still have full control over where they fall and how they do it.
Can you receive some of these techniques with a forward or a backward roll? Maybe. Depends on how well the technique is done. I saw below that you said you had direct experience with Christian Tissier, I haven't had the pleasure of being on the receiving end of his technique but I have practiced with people who try to learn from him. And to me it is just a different way to execute a technique. Not better, not worse. It is just different. I have to say that I like it a lot
In a couple of weeks, I will be able to practice for a whole month with people who learn directly from Tissier Shihan, I will make sure to try to take every technique rolling forward or backward and will let you know of the result