We have played the character for months. Sorry we are not top player dickriders like most people in this site, we can have our own opinion, top player or not he can be wrong, just like we can be wrong.
REO is one of my favorite guys in the community so this is not anything against him nor Foxy anyway.
This is where I think people get confused about the situation.
More and more players are starting to listen to the fact that Mileena could very well be a strong character, especially post patch. It isn't that people are just "dick riding" as people like to throw around lately, it's that as a character she is receiving a lot more attention from players that can take characters and run with them. The same way SonicFox randomly picked up Kitana and won ESL and EVO with her while most of the Kitana players were saying that she still struggled post patch and wasn't that strong.
People are inclined to take the opinions of established strong players over those that mainly exist on forums. Not to sound elitist, that's my last intention, but just because people have played a character for x amount of time doesn't necessarily mean they are able or have thought of making the character shine in the areas they needed to. I have known players in the past that know everything they could possibly know about a character, but just aren't that good at implementing it in game, meaning the tiny in depth stuff that may have been there would have gone amiss.
For example, Foxy was trying to explain to everyone a few months back that Mileena has the tools to be super safe and effective that way, where as the main complaints from Mileena players on TYM was that she was way too unsafe and risky, mainly because she was played as a yolo 50/50 character.
Let's just acknowledge that maybe things aren't set in stone yet. Characters are evolving.
