The rule you sited does not define interference. It also conveniently does not refer to any other section but, in absence of such a reference, I can only assume that the definition of goaltender interference in rule 69 holds here. Whether or not a minor penalty is called or not is separate from the definition of interference. I don't think you can argue that Chara did not push him into the crease; the ref can claim not to have seen it, and that's fine (a blown call). You (and/or the ref) can also contend that Fisher did not make a reasonable effort to avoid contact. From what I saw, it appears that he tried to get out of the way -- was that reasonable? Not sure. I don't know what the ref said. I *think* they just missed that he was pushed.
By the way, rule 69 also states:
Have you ever seen a goal called back for interference, and a penalty assessed for said interference on the same play? It didn't happen on this play and I've seen many cases where the goal is called off with no ensuing powerplay. Yet it's "textbook" all the way.
By the way, rule 69 also states:
In all such cases, whether or not a goal is scored, the attacking player will receive a minor penalty for goalkeeper interference.
Have you ever seen a goal called back for interference, and a penalty assessed for said interference on the same play? It didn't happen on this play and I've seen many cases where the goal is called off with no ensuing powerplay. Yet it's "textbook" all the way.