Well, I can see why Episode 3 was polarizing. IMO, the biggest problem with it is that it should have happened next season.
My biggest issue was with the main bad guy, but only in the sense that he
should have been Moriarty instead of the ridiculous lunatic they actually used. I do not miss him. They even referred to this guy as the Napoleon of Something (Identity? Information?), which makes me wonder if there aren't plans for that along the way, but what a waste at this point.
I still hold to my opinion about who the larger villain of the series is (I didn't actually think that would get revealed this season).
Overall, I enjoyed the episode still, with just a few minor issues.