Originally Posted by
Hitei
No, it means the exact opposite, which is the problem. With either one becoming a more solid warchief going forward, you are telling the players who picked the other one "No, you chose wrong and lost." That isn't all that problematic on paper, but in practice, because players have little agency in the overarching story (e.g. even if you pick Sylvanas, you can't do much to ensure she stays in power if the plan is for her not to) you are just kinda dicking over anyone who didn't pick the right side at the start.
Honestly I'm still sticking to there not actually being real factions next expansion. Players will just be players and quest for/fight against whatever factions they want, and so, be free to group for whatever other content.