I don’t think I can confidently swear one way or another, but I will say that all the damage inside the packaging is very unusual. Cards will definitely get damaged inside packaging but that’s an awful lot of it. But the plastic itself also has lots of damage and signs of reckless storage. If this has been mishandled for 20 years I suppose it’s not unreasonable.
Other things however are normal for these cards. The crimp is often uneven or diagonal, for example. Here’s a pic from another sample:
Yea I don’t think you can confirm anything. Realize that rewrapping this card is not something most people would even consider. It was probably stored very poorly. It would be strange to pick this out of all the things you could possibly rewrap and if done, wouldn’t you want to do it well?
I lean strongly towards it is probably real, but someone who has handled more may offer a more certain opinion.