Yeah, kinda sad that the video doesn't show it. Neither did eleague's clip either.
And there's even more into it. Flusha realizes he can drop to the CT slope, as JW pushed through the middle and told the info that he sees no-one. So flusha goes for the risk after jumping behind the (presumably) one way smoke to get info that the play is safe, and then hides landing noise with the HE, ensures empty CT and middle, and proceeds.
Then Rubino makes the play towards mid (luck for fnatic probably.. JW could have drawn their attention there, but AFAIK he was silently there. However, middle was empty from CT, so Rubino kinda had to go get the info).
And here's the coolest part: Krimz immediately pushes through double doors to see that long is empty towards the site. Flusha ensures the angle that Krimz cannot see from the double doors, moves closer to cajunb to keep the element of surpise, and start action before rubino gets too far. Two easy headshots. Same time Krimz pushes long and gives the info of tenzki's position (while dying). Third headshot. JW dies while trying to catch the rotation as at this point dignitas has finally realized what hit them, but too late against olof and flusha.
All this in about 10 seconds with 2 second of action. Amazing. Was this planned play or flusha supercomputed the tactic on the fly (he does this a lot), who knows, either way super impressive.
And dignitas didn't do anything wrong or any real mistake there for this play, except didn't get info from middle all the time.
Anyone new to CS. Take fucking notes. Flusha is so advanced with his game sense that if you can replicate 50% of that, you will be top contender.