As I’ve always said about AWE concepts, rather than starting out chasing megaWatts, try powering a single home first. Or even just a system useful for any purpose. (Charging a phone?)
Maybe the parachute idea could be useful for something - who knows, while not very “efficient”, at least it is relatively simple.
Seems to me it makes more sense to verify a concept at an achievable scale before even worrying about megaWatt versions. I guess it’s easier to dream about giant scale than build at miniature scale. Or for people with misappropriated, unsuitably-large budgets, they can waste money, manpower, and resources, building large models before they have verified the usefulness of the basic concept at a smaller scale.