Yeah that maneuver would work... if you had a few years to do it. But it was a race against the clock kind of episode they were doing that in.

Also the idea of spinning asteroids (like Ceres) to make artificial gravity was a good idea at the time. But the general consensus now is that asteroids are more like balls of gravel so if you spin them up, they'd just fly apart.

But it's a great show despite the nitpicks. The ship designs are awesome and needing to do a flip and burns and stuff like that is cool to see.