Even when ignoring the per-part cost, are the parts even the same material? Looking same != Being same. Not sure what Formlabs is trying to prove here.
They have a robust material library, silicone, polyurethane, glass filled polymers etc. The material is not really a bottleneck at this point. I have used their ESD material which was slick, even the weirder materials are super easy. Obviously at scale the parts will make more sense with injection molding but if you need a couple thousand of a part this seems much cheaper and easier.