The “Star Wars” prequels did a lot of things right that they don’t get enough credit for, like the bold twist of portraying the Jedi as a corrupt organization unworthy of worship. But the trilogy is also rightfully maligned — for example, it insists on answering unnecessary questions that undermine what came before. In the case of Beru and Owen Lars, the prequels ultimately hurt their characters by having them just show up out of nowhere, meet Anakin for five minutes and somehow end up taking care of Luke despite having no relation to him or his father whatsoever.
At least Owen has dialogue. Beru has literally only one line of dialogue in the entire trilogy — “hello.” But that wasn’t always the case. It’s not completely certain whether this is the scene Bonnie Piesse was referring to, but in early drafts of “Attack of the Clones” there was a brief scene between Beru and Padmé. The two were in the kitchen as Padmé made food for Anakin and the two talked about Naboo and its vastly different climate compared to the rough desert of Tatooine. (Rest assured, there was no talk of sand.)
Sadly, the scene did not make it to the final film. Still, Piesse finally had her big Beru moment in the Disney+ show “Obi-Wan Kenobi” when Beru (and Owen) fought against Reva as she tried to take Luke away.