I’m normally one defending copyright on this forum. But dude, this software is half a century old. Nobody is buying or selling this software. Nobody’s business or livelihood is threatened by this.
Because the media was no longer in the rights holder's possession. This is a dangerous line of reasoning where someone can steal a copyrighted work and then be allowed to profit off of it because the artist has no way to do so.
Being able to see a long lost UNIX version is interesting and I could imagine it being worth paying to see it or play with it similar to how people pay money to see things at a museum.
But your line of reasoning says that since the artist is unable to make money from the print, then there is nothing wrong with someone else doing so as the artist isn't missing out on any profit since they have no way to sell prints.
Also please note that I have not said that the copyright is not valid. However, a case for fair use is not unfounded here.
> your line of reasoning says
It ain’t my line of reasoning. I’m paraphrasing the actual law:
As 17 USC § 107 says:
> In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include— (1) the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes; (2) the nature of the copyrighted work; (3) the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and (4) the effect of the use upon the potential market for or value of the copyrighted work.