Holding for rope and jump by same button - bad idea. Better make catch/release for rope by press jump button, not holding. And how to remove previous useless ropes? Isn't easy catch needed rope if several ropes keep a close.
There are a lot of control "features" that I think were not good decision. In the full feature version I am working on, the control are completely different.
Maybe try catch rope by default, when player NOT hold jump. And release rope when pressing jump button. Need try several variants, by words difficult says what variant better.