Does this pack feels like PSa ?

No, it doesn't feels like a psa to me. If it would be a psa, I would expect more "shocking" pictures than a dumpster woohoo (and the insect food), so like a cute little Baby, dog or cat dies slowly because if the dirt. I would expect, that the voice told me how terrible I am because it's my fault as a consumer that the world suffers. I would expect a blame game who is poisoning the air and water. I would expect, that the voice told me that I waste too much ressources.

But the voice didn't told me something like that. It is just a advertisment with a young adult sim, who hasn't lost her hope about the society yet.