Respectfully, I disagree any of it is factually incorrect. It’s generally accepted that Fluoroantimonic acid is the strongest superacid on this planet probably because Helium Hydride ion can’t sit on a laboratory shelf or be used for anything at the moment. I’m deferring to the chemists on this one.

Fluoroantimonic acid - American Chemical Society

Now if were were talking the strongest acid in the universe, it looks like Helium Hydride would definitely be the winner.

Helium hydride - American Chemical Society

Thank you for bringing this topic up because I didn’t know that Helium Hydride is believed to be the first atomic particles to form after the Big Bang. Interesting fact there.