The concept of starting your video with fake commercials is not new. It is a good way to place your the video in the context of a specific time/place.
When you make something that is a pastiche, it is really hard to get mad at someone else who makes a similar one.
I get how someone can be sensitive over their creations, but there is nothing of substance to these claims. I really don't want the games industry, especially indies, to claiming that anything that uses a similar idea is a ripoff. Because games themselves are incredibly iterative.
If we applied this sort of scrutiny to games: "Your game has a late title screen!" "You game has pixel art!" "Your game is set in WW2!" "Your game is turn based!" Your game has an escort mission!" "Your game has a basic training tutorial sequence!" Your game is about saving a princess" "Your game is about manipulating time" "Your game has chiptune music!" "Your game has a narrator!" and so on.