So a couple hundred guys won't be able to kill one bou, but local residents will still kill 5 per day and 30+ each for family/extended family? That makes sense.
There's been so much research on this, this closure is laughable. The herd is declining because they let it get too big and the calving grounds got overgrazed and now the bou are having less young coupled with too many wolves that increased to feed on a herd size of 550,000 animals and are now feeding on a herd of 200,000 that's dropping monthly.
The herd is going to drop down to below 50k animals and banning NRs is not going to change that or slow it down.