Yeah, it's "Newtonian Styled" physics, being able to turn on and off the "IDS" or, "Inertial Dampening System".
But I can totally see how true Newtonian physics would get very annoying, confusing, and vomit-inducing in a combat type game.
And you can easily explain away the lack of Newtonian pitch, yaw, and roll by saying that those are controlled by a very sophisticated computer and precise, powerful maneuvering thrusters, each outputting an amount of force equal and opposite to the direction of spin in order to stabilize the craft when it's time to stop maneuvering. Heck, by starting the opposite forces before the maneuver is finished, but with lesser power, ramping one up as the other faded, you could decrease the time to a full stop considerably.
I would think that by the time we have the technology to pilot small, single seat spacecraft through the vast reaches of space that we would have worked something like this out.
It's what I envision in my mind to help keep the immersion, anyway.

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