When she left DS, she was told she'd never work again
Well, she was told by DC that she would never work again, so let's consider the source.
And especially that DC had his own agenda going, namely trying to prevent her from leaving with Ben.
And as I said, in acting there's no such thing as a small part.
I just didn't want any but the most devoted of KLS' fans (the cult of TLATKLS) to possibly look forward to something that may not be worth their energies.
And to that end for those who didn't bother, here's a screen capture of one of her more memorable seconds from the Pan & Scan version of the film:
Simon Oakland, who was standing on the right side of the shot gets completely cut off there save for the tip of his nose, so KLS was really lucky she was standing in the middle or she might have been heard but not seen.