There's also the possibility that Abe was going all around Rupture Farms to rescue all the mudokons. I know that wouldn't make sense when you're not trying to save any, but the canonical ending is saving 99 mudokons, so maybe Abe could have taken a more direct route to the board room but that wouldn't have allowed him to save the mudokons there first.
__________________

:
|
I'LL GET MAH STABBIN KNIFE!
|
|