Being able to move stuff on an existing path is great because it can allow you to use the same path for another object or visual easily too.
However, I’ve always found that AE’s ability to simply manipulate the spatial curve of key frames directly is far more intuitive.
It would be great to be able to do both, but I believe the second would be more valuable.
Hope that’s helpful feedback.
Great program - I’m still yet to explore it properly.