Facial recognition technology being used for surveillance is awful, I agree, but I don't think that's what's happening here? It seems like they're just pointing a camera at fireworks, and identifying the property they came from.
Cops with camera drones are also a problem, but it's not like they'd need anything special you can't already get off the shelf to do this.
Some games also use the rarity system to funnel mechanically simpler cards into more common rarities, which works well in a draft environment, since those are often the cards you want to have come up more. Which is really the point of the system, ideally it would be a system to support draft environments that work well, without artificial scarcity that hurts constructed players.
But you can also make a constructed format that only allows "simpler" cards that have been printed at common, which is neat. Or one that only allows higher rarities.