The amount of time wasting is a general problem that prevents football from being played at football matches.
Fans neglect it, even praise it, when their team are winning and doing it, while complaining when their team are losing and the opposition are doing it.
Maybe that's also why nothing are being done to prevent this rubbish being displayed in front of paying fans. Fans don't unite in saying that it's not wanted in the game. They could, after all, find themselves in a situation next week when their team possibly aren't good enough to keep a lead through fair methods.