Nope.
I agree with the 7/10 rating but not the reasons why.
I feel that you may not be using Sub to his full potential which is resets and overall combo opportunity. Did you know, his forward 4 is an overhead?
Look, Sub-Zero is slow but sluggish is over exaggerated. Sub-Zero has a flow about him, you just have to catch on to it. Nothings wrong with having 4 special moves. Hell, his ice ball and ice clone is the center of his game. The ice puddle is kinda useless but you can use it for resets or when you catch your enemy off guard.
Sub-Zero doesn't need a teleport to win, and anti teleport is false. The anti-teleport is either the block button or the ice clone. Also what slow recovery time are you referring to anyway? Cause you know, if you do a combo like 2,1,2 you can either ice ball or ice clone to make yourself safe.
I'm not trying to bash you but Sub-Zero can be a great character to use if you know all the properties for him. Also MKvsDCU was a totally different game from the current one.