Let's hope that that single rotating part has been made and assembled with
the proper controls.
Something rotating at 100,000 rpm about 3 feet from your head had better be
good.
Contained failure would mean bullets being fired at your fin/tailplane.
Uncontained failure and you had better have a good parachute, assuming you
survive the explosion!!

There on single moving (rotating) part in a turbine. Compare that to
shaking two-stroke held together with a bucket of tiewraps.