It isnt neccessarily cus he's playing bad, Liquids playstyle against navi is literally not caring about the other 4 in the team.
I remember dust2 at some event this year(i dont remember which) (or maybe it was end of last year? xD)
S1mple got 2k on A long(as ct) liquid full rotates to B where they simply run out and kills zeus and edward, fastly kills the midrotator electronic, and there is the round.
If a team focus their whole book to counter, avoid, a player, its obviously gonna work, especially a team like liquid with their type of caliber, Its not like simple is playing anything wrong, liquid is simply playing around him.
Astralis is yet another good example.