Look at the slide(s). The allegedly duplicated text are in red. The unduplicated text is in black.
The obfuscation was just a lame attempt to "protect" their own code. But, it doesn't matter, because it isn't relevant to the issue.
On the other hand, the allegedly duplicated text on that same slide has been found in public domain code as early as 1986, pre-dating SCO Unix.
And what's your source to this, and who made that contribution to public domain? Wasn't IBM was it? Another Unix licensee?
Seems that might be something SCO was willing to show in public. No way of knowing, and where are the rest of the pictures and what they show?