I thought it was because Obi-Wan knew Han was boasting about a supposed lie about the Falcon, not that he was trying to lie about what a parsec was.
You would think Luke would also know what a parsec was during that scene as he's a pilot. That seems like it would be more basic knowledge there than it would be here on Earth.
My gut still tells me Lucas didn't know or care. The novelization back in the day says "standard time units" instead of parsecs... which would indicate it was an error in the script.
I was so looking forward to that game. Once I found out it was basically just a multiplayer experience, my interest dropped. Still haven't played it.
The problem with many games and movies nowadays is that the gatekeepers are people who don't really have creative/artistic background. They are business people who make decisions on whatever they think makes the company the most money.
A.I. has its issues and controversy, but I feel like creative people who can't get through the blocked doors of these business types will go on their own and create wonderful things with the technology. I guess time will tell.
A.I. still has trouble with fingers, I see.