Seeing people in Israel, Iran, the general Middle East as well as the Ukraine live in fear of drone strikes might have incentivised this person to come up with a potential way to deal with these threats.
Cheap air defense would equilibrate drone warfare again:
Currently drones are much cheaper that the systems that take them down.
The fact that home made drones can cause such havoc to even the best funded military is an equalizer when the military with all the power is actively trying to completely eliminate the otherside.
There are no home made devices a Gazan can build that can protect from a 2000lbs bomb.
FPV.
But I really hate the whole weaponization of these FPV drones (as opposed to the bigger fixed wings ones), not just they ruined the fun hobby that a lot enjoy, but also increased the prices for the parts. Before 2022 whenever I talk about drones everyone is enthusiastic about them, what benefits they can bring like drone deliveries and all, after that, you get a hostile reaction or the government putting you on some watchlist.
Just to give you one figure: estimates are that between 1000 and 1500 Shaheds have been downed by interceptors during last February. That's not a 100% kill rate but it definitely isn't 1% either. And they're getting better every week.
https://english.kyodonews.net/articles/-/72301
It is very odd to see the defense industry live up to its name for once
USA/NATO/allies heavily rely on Patriot AA system. Even if you disregard the prohibitive 100x cost difference, there are about 2500 Patriot compatible PAC missiles.
This is why gulf states are scrambling to get their hands on cheap alternatives - Ukraine manages to shoot down over 90% of all drones heading their way, usually it is over 400 per day in big waves.