For years people have been complaining and whining to Valve hoping that they would introduce servers with higher tick rates for competitive matchmaking.
This is a good example why.
We've all been the victim of lag at one stage or another, and we've all witnessed players occasionally teleporting.
But, as you'll notice from the net graph below, that's not the case for the poor player here. Their ping is stable. Their connection to the server is stable. The server itself, for all intents and purposes, appears stable.
So with that in mind, you can probably understand the frustration that's about to ensue.
I should add that, having played Counter-Strike for thousands of hours and CS:GO specifically for more than a thousand, I've never had this particular brand of body-splicing magic forced upon me. That's not to say it doesn't happen more often, of course, but it does make it more enjoyable on the rare occasions when Valve's premiere first-person shooter decides to go all Harry Potter.