So it doesn't really matter which one it was because it's the portrayal of Pelinal in relation to everything else that matters. And the robot impression helps to portray how much Pelinal outclassed everything better then merely describing his stat sheet.
Proweler has always spoken the truth, especially when upon the subject of Pelinal Whitestrake.
But let us ponder Pelinal for a moment, shall we? More specifically, let us ponder exactly
why Pelinal was/is a robot.
1. Pelinal is a robot. (See http://www.gamesas.com/bgsforums/index.php?showtopic=758104&st=20&p=10993036entry10993036)
2. A robot is, by definition, not human.
3. Pelinal represents the combined Aka/Shor enantiomorph. (See e.g., "http://www.imperial-library.info/obbooks/songofpelinal.shtml)
4. Shor represents Freedom and "the spirit behind all human undertaking". (See "http://www.imperial-library.info/obbooks/songofpelinal.shtml#2"; http://www.imperial-library.info/mwbooks/varietiesoffaith.shtml)
5. Akatosh represents "invincibility", "everlasting legitimacy" and immortality. (http://www.imperial-library.info/mwbooks/varietiesoffaith.shtml)
6. Shor-who-is-Lorkhan is a god of the Underworld and therefore represents mortality. (http://www.imperial-library.info/mwbooks/varietiesoffaith.shtml)
CONCLUSION: Pelinal is considered a "robot" because only when Lorkhan splits from Akatosh do we find "humanity" and "the human spirit" appearing on Mundus, and Pelinal, although symbolically still without a Heart, contains an aspect of Aka. This renders Pelinal "inhuman", which could explain his bloodthirst and madness.
Yours in the Scrolls,
___The Word Merchant of Julianos