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I'm sure there's many benefits to electric motors over turboprop, or turbofan, including reliability. Conventional engines have a more narrow range to operate efficiently, for instance. Electric motors are pretty efficient throughout the load range. Commercial aircraft have a RAT (ram air turbine) to generate electricity when engines fail, whereas an electric engine can also act as a generator if there were a sudden loss of power. No need for a RAT.
I wonder if the engines can help torque vector too. Rather than rely entirely on a rudder to turn, you could reduce power on one wing and increase power on the other. Maybe that was factored into the V tail design; which integrates the rudder and elevator functions.
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