It's actually not really easy for AI, without the agent doing some actual coding itself to reverse engineer the font file, or to take screenshots at different variable font intervals to zone in on the "focused" version of the variable font. All of that being said, the intention (beyond just having fun creating it) was to make it AI "unfriendly" so AI bots doing broad quick reads of it are going to be left with gobbledegook encoded characters.

As they said in the comment you replied to: "Note that a sufficiently prompted AI agent can definitely read this, so it's not meant to be cryptographically sound, more just unfriendly to the common AI reader!"