I like the basket idea and i happen to have one to be repaired . I still like to cut the long stem that don't have leaves.
I have several dens that look like yours. They can still put out spikes that bloom and also will keiki. I would not remove any until they are all dried up and dead. I like letting my chids use up all the stregnth it has to put out blooms. I even have some dens in hanging baskets with a bungee cord keeping all the canes growing straight up. That way the bare ones blend in with the ones with leaves. When they bloom there are spikes all over the place, old and new growth.