However that study is using a different data set afaik. There is no indication that the things being requested taken down by Israel are the same as those being studied by HRW.
Its also really difficult to draw any conclusions from the HRW study due to selection bias issues. The sample was sent in by users instead of being chosen randomly from censored posts. Even assuming you agree with HRW's assesment that the posts were peaceful, there is no way to tell from the study if this represents the 0.00001% most "peaceful" of all censored posts or if its the average censored post, and i think that makes a big difference when evaluating this situation. The experimental design of the HRW study is just rather poor, and i think you could use such a design to come to basically any conclusion you want.
Its also really difficult to draw any conclusions from the HRW study due to selection bias issues. The sample was sent in by users instead of being chosen randomly from censored posts. Even assuming you agree with HRW's assesment that the posts were peaceful, there is no way to tell from the study if this represents the 0.00001% most "peaceful" of all censored posts or if its the average censored post, and i think that makes a big difference when evaluating this situation. The experimental design of the HRW study is just rather poor, and i think you could use such a design to come to basically any conclusion you want.