There could be other reasons as to why the team chose to extend the bounty. I guess the tokensale is still ongoing and the service of bounty hunters are needed. The issue of extending duration of bounty is more like a norm, because things don't always go according to the plan for the team.
Token sales were completed a week ago, and the bounty should have ended yesterday but the bounty manager chose to extend it. This is the second extension.
I thought why didn't they make a new round instead of extending? That will make everyone happy. Right?
maybe its developers team strategy to make their popular in crypto community, if we compared to another bounty campaign there are lot campaign which is held for more than 12 weeks. so this extention doesn't be problem for us as long as bounty manager still manage it well. maybe this is strategy to postponed distribution by adding bounty allocation as compensation so its price not dumped now.