the parent of your comment is referring to the phrase “urban air mobility market”, which the X-57 PR video demonstrates as being small aircraft, a few of which were VTOL craft -- not the X57 itself.

The PR video was basically hinting at the X57 being a technology demonstrator which will showcase techs (like electric propulsion) that the so-called “urban air mobility market” can then take off running with.

> "It's still a plane, it has no VTOL capability. It cannot be used for what helicopters are used today."

This one, yes. But there are many "urban transport" VTOL electric aircraft in development. The idea is to combine the utility of a helicopter with the efficiency of a fixed-wing, while adding the environmental, reliability, and O&M cost benefits of electric.

I believe that, in the coming years and decades, electric VTOL aircraft will replace traditional helicopters for many applications.