Unfortunately the report itself uses diplomatic language which can be hard to parse. For example:

BSR also notes that the recent action to remove senior military officials from Facebook has a material impact on Facebook’s ability to implement some of BSR’s recommendations, especially those that relate to activities undertaken inside Myanmar.

I take this to mean, "Facebook's attempt to punish Myanmar's military leaders has infuriated the government and its supporters, and this blowback has made it harder for Facebook to protect the rights of the Rohingya minority."