Lets put it this way. If the Leafs had Binnington last year in the playoffs, I'm confident that they make it out of the 1st round at the very least if not going further. On the otherhand I highly doubt that the Blues would be winning the Cup with Freddy in net for them. Heck I doubt they would've even made it to the playoffs with Freddy when the Blues were in last place and then made that amazing run to even get to the playoffs.
Sure the Leafs defense isn't as good as the Blues, but at the same time alot of the saves that Freddy makes aren't exactly A1 scoring chances. I've watched almost every Leafs game since he's arrived and a vast number if not majority of his games were like the one against the Sens yesterday. Make some decent saves and then let in a softie here and there. In the majority of games I've rarely seen him standing on his head and stealing games for us especially when we're talking about the playoffs.
So maybe stat wise Freddy doesn't look bad, but much like Derozan with the Raps, he hasn't shown that he can rise to the occasion and be able to help lead this team to victory. Derozan put up very good stats while he was here, but come playoff time he was crap and the same goes for Freddy. The defense needs to help Freddy more, but the same needs to happen in return where Freddy needs to put in some amazing performances that wins the Leafs games that they otherwise would've lost and so far I haven't seen very many of those kinds of performances from him.