the characters all get important things to do throughout the film
Impoooooooooooooooorrrrrrrrrrrrrttttttttttttaaaaaaannnnnnnnnnnnnttttttttt!!!
JEDIT: Your statement is actually very true, and I think this is to the film’s detriment. Why are Lando and Han, two scoundrels who had little to no interest in the Rebellion, suddenly generals capable and willing to lead the Rebellion’s final attacks? Why are R2 and C-3PO used in the forest without so much as a camouflage paint job, while there were probably specialized recon droids used by the Rebellion for such missions?
The characters feel plenty important in ROTJ; they just don’t feel right.