Dreamchaser is an interesting vehicle and may have a future for taking humans to and from a private commercial LEO station. But it seems like a huge challenge to make it cost effective compared to Starship (which of course has yet to be proven out).
Dreamchaser has one purpose: to make return from LEO convenient and comfortable. It doesn't alter the way we go to space, it doesn't alter the way we move around in space, and it doesn't alter the way we reach the surface of any other bodies. Other vehicles can do a better job. So the question is one of whether a vehicle like Dreamchaser is a practical choice for returning crew to Earth.
If they were dirt cheap, reusable, reliable and automated, I could see them as a kind of simple lifeboat for returning to Earth. Send a bunch of them up as cargo on a Starship, then park them at a LEO station in a simple garage (to protect the thermal tiles). Crews wanting to return to Earth would travel to the LEO station, enter the lifeboat, press the big red button and wait until they're safely on the ground. Send it back up when there's available space on a cargo Starship.
Use solid rocket motors for deorbit, monopropellant for orientation, automate everything, and perhaps even skip life support, requiring crew to wear their custom suit with a couple hours of air. The solid rocket motors are either going to fire or not. If not, you thruster your way back to the LEO station, dock, and resolve the problem, with the understanding that you have a misfire of a solid rocket motor.
Ultimately, I figure that Sierra Space will end up as a Wikipedia entry. They're carrying on with the funding that they have from the government, but that'll dry up. Unless they have an angel investor like Blue Origin or SpaceX has, they're going to go away. Water landing of capsules will suffice for a decade or two until the big players come up with something better, like human rating the Starship flip.
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