Yes, the only sheets on Roll20 are 0e (the newest edition is 1e), and all other Mothership content has been removed other than third party token sets and maps. I can't speak for the publisher, but they do seem to put a LOT of time and effort into physical presentation which doesn't translate to VTT, so I'd imagine they don't find it worth the effort. I'm seriously considering going Pro with my subscription since I find most of the existing character sheets very lacking but I still love the platform.