I've seen smart people not getting this (because an analysis at Vox right after the election didn't use the final numbers), but Stein's votes cost Hillary Wisconsin, Michigan, and Pennsylvania.
Here is just one single day of the consequences of this.
Interestingly, not changing the votes or the Electoral College, giving Wisconsin Michigan's Upper Peninsula to Michigan, and giving Florida's Panhandle to Alabama would have put Hillary in the White House.
Hillary got ~3 million more votes. Two of the last five elections given to the Republicans because of a system designed to protect slavery. No one should ever claim this is a democracy.