Not so different from matrix isn’t? I’ve got no idea how it works but does it also destroys all forms of electronics in the area?

Shit you can do when your target audience isn't "people in general", which is #1 reason why modern ads are so bland and boring. Also, I assume they're not trying to sell a specific product here, but rather an idea that someone can later invest in.

Because this is all what they have - a fictional dramatization meant to impress layman decision makers into buying a tremendously expensive system that'll never be viable.

This would've worked in a world with no major conflict where the main enemy was a fictional one dreamed up by them to be especially vulnerable to the sort of system they make but we don't live in that world.

You have to consider that they assume that the enemy uses the standard online forum strategy of swarming the drones.

If you have enough drones for a swarm, you'd realize that losing some of them to figure out the enemies' anti air defense range would be a viable strategy, which means you'll stop swarming them.

Also, will these swarms even be picked up by radar?

And the OP link reads like a PR news release.