Most organisations will try to balance the way they manage situations. At present the authorities are not hitting us with major penalties. If pitch invasions carry on and the incidents increase harsher measures will be imposed. I don't see that as bizarre I see it as a natural progression.
It’s a yearly occurrence only because we’ve won the PL title 5 times in the last 6 seasons. If Arsenal had won the title this season there wouldn't have been a pitch invasion, just a disappointing lap of honour.