The makers of Wankel engines today appear to not be aware of some fundamental mechanical understanding of what takes place in the engine.
What they are now doing causes extreme stress and excessive heat within the engine.
Look at a bicycle crank arm with the pedal at top dead center.
If you apply pressure to the foreward side of the pedal you will push the crank backwards.
The rotor has its teeth meshed with a stationary gear therefore any attempt to turn the rotor without first turning the (crankshaft ) e-shaft is futile.
The ideal way to turn the e-shaft is to apply pressure from the trailing side.
Note the wrong location of the cavity in the rotor face.
A two rotor Wankel engine has another superior advantage because the power stroke is in its last stage when the other rotors power stroke is beginning.
A connecting pipe with a check valve can inject an inert gas (exhaust) to the leading edge of the rotor at the time of ignition providing additional compression and forcing the combustion to confine itself to the trailing side of the rotor.