Not really because the difference in ranks between the two teams was much higher then Gambit and Immortals. Gambit was a severe underdog. Immortals was a pretty highly ranked team at the time.
As an aside I'd argue that Ence wasn't a fluke simply because they didn't win. Getting into the top 8 and even scoring some upsets isn't all that impressive in the whole scheme of CS. I mean I think most of the CS world wouldn't be surprised if you said that Ence was going to make a playoff run at a big event this year.
Here's the thing though. Calling a win a 'fluke' isn't some insult. You still have to play things out on the server. Gambit/C9/early Fnatic/whoever the fuck still got on the server on the day of the major finals, sacked up and won. That's all that counts.
The 10-6 Giants beat the 16-0 Patriots. That 16-0 Patriots team might have been the best American football team ever put together. Does that make the Giants win somehow unimpressive?
It's laughable and the CSGO community's obsession with calling thing flukes is straight up just due to nationalism on both sides. That's why I always feel like there's some irony when Europeans rail against nationalism and talk about how enlightened society is there but are absolutely gleeful that the only NA major winners split up and were never able to defend their title.