When VW use the ID brand for its EVs, Mercedes-Benz use EQ, Audi use e-Tron, why Ford cant use Mercury for its electric vehicles? The advantage is that the Mercury EVs can be sold at Ford and Lincoln dealers...
True, Ford could have brought back Mercury an EV-only range. (This idea probably sounded crazy 5 years ago but it now makes more sense)
In the recent decades till it was scrapped, Mercury had no identity. It was either like another trim for a Ford model or "Design option B" of an equivalent Ford vehicle.
Making Mercury an EV-only brand would have finally given the brand its own identity.