Hardly that. You said ACBAOAGN explains the result. I said it doesn't.
"Anyone can beat anyone..." is obviously true but it sheds no light on what happened. It's like saying, "there were a lot of Flyers' fans at MSG last night." That's undoubtedly true (there always are) but it's irrelevant or incidental to the outcome.
I offered a partial explanation for the result, namely how well Ersson played. But why he and the Flyers suddenly played so well, that's what I find interesting don't you? The parity among NHL teams can't help us with that. The team is so unpredictable now I called them "whack jobs" and imho it's a fitting description.
Some games this year ACBA probably is the best explanation. In Dallas, in Winnipeg, in Sunrise ... but after going winless in 8, to get some perspective on whipping the legitimate Cup-favorite Rangers 4-1 at MSG (who were trying to secure the #1 seed) I need more than "anyone can beat anyone."