The interview specifically stated that the more major changes were coming in 7.2 and onwards. The changes to Viper and Monk (among other jobs) are just knee jerk reactions that shouldn't have happened, but they are also quick changes so it isn't fair to point at those and say, look, they didn't do what they claimed they would.
Changing jobs more drastically takes time, they have likely already started with the 7.2 changes, so, like it or not, you will have to wait.
You also have to remember they take feedback from many many places. What do the JP forums say? How about the other languages? Are there other sites that other languages use that are similar to Reddit? Youtube? How about feedback from the ingame systems? Just because the forums specifically do not like a certain change, doesn't change the fact they might have had a massive amount of feedback to the contrary.