Citizenship for Refugees

The BBC reports that Tanzania has recently granted citizenship to 162,000 Burundian refugees who have been living in Tanzania for years. Many are Hutus who fled Tutsi violence in Burundi during the 1990's and have since integrated into villages and the fabric of Tanzanian society. This is a precedent for its scale as far as I can tell and seems to be a much better outcome then deporting them en masse, as was discussed in 2008.