I saw Victor Lucas (from Electric Playground)
interviewing Freddie Wong (independent filmmaker) a couple weeks ago, and he said something similar.
As a writing exercise, he likes to challenge himself. So he asked himself "What if Disney asked me to make a solo Jar Jar movie?" He gave it some thought and concluded that Jar Jar was a tragic figure, who swore a life-debt to Qui Gon Jinn, and then not only did he let Qui Gon die, but he was manipulated by Palpatine into contributing to the deaths of the entire Jedi Order. And then, he's best buds with Darth Vader, the most evil bad guy in the universe (also manipulated by Palpatine). There's story potential there, it's just drowned in hatred for the character of Jar Jar, so nobody ever looks.
He said that by the end of his movie, he'd make you cry for the death of Jar Jar.