Jerry's Uncle Deadly does sound a lot like Vincent Price now that I think about it. In my opinion, Matt's Robin sounds a lot like his Big Bird, and sounds sort of like Jerry. My reasoning is that Jerry didn't do a great job at hiding his voice, with the exception of characters like Lew Zealand, Crazy Harry, and the Count. But if you look at(or in this case, hear) characters like Floyd, Robin, or Gobo, you can definitely tell that it's Jerry.
(which also makes me wonder, if Matt does Gobo for the new movie, will it sound like Robin? Because Gobo and Robin sound a lot alike in my opinion)