Would a twin Pegasus engine have helped the Fleet Air Arm?

Would using two Pegasus engines have benefited the Fleet Air Arm?

Possibly. It could have been very useful if the new design retained the Pegasus engine's reliability.

The proposal is assessed through engine reliability. A twin installation could be useful if the new design preserved the Pegasus engine's reliability. Poorer reliability would undermine the intended advantage despite having two engines. The counterfactual therefore turns on whether the redesign could retain the original engine's dependable qualities.