I would gather they are definitely a Top 20 World Series Champion - their path to Glory was arduous indeed. Best team in the regular season has certainly not proven the best post-season team in the modern game. The only reason I was downtrodden after losing Game 4 was the fact they lost out on the ability to claim as the only team to ever win the NLCS and WS via 4-Game sweeps. I, for one, never doubted they'd win it all after that slip up - they'd proven all second half (and, especially since September) they'd bounce back. Water off a duck's back. IF they had managed that Game 4 victory via Pratt's HR? I think they are instantly debated as a potential Top 10 team ever. So it goes. But, I never doubted it for a moment and lauded Yeli's post-game level-head. The true mark of Champions they had exhibited throughout their season.
In the end, it's all subjective and I don't care enough to hash it out. The fact they even won the World Series just fills me with incredible awe, admiration, and deep reverence.