The gimmicky part is not the engineering but the fact that it is not a flying car but a proof of concept of a flying car in a very controlled environment, with no regard for cost, with no actual viability of real world use.
Its like the breakdancing humanoid robots in China, a cool feat of engineering for sure, but it makes you think that robots can do human tasks, when the reality is much further away.
Sure but Tesla is not SpaceX.