For error catching it is handy so any errors can be caught and sent back to a place for handling.
But if you are working on the flow it is sometimes annoying having the errors caught and not seeing them as if the
CATCH nodes wasn't there.
It would (could?) be nice if while you are working on that flow that you could disable the node.
So if there is an error it isn't hidden. It is easily visible in the
debug window to the right of the screen.