If the Mysterios truly remembered the days of infamy (known to the Devas as Customer Appreciation Week), I would think they'd let sleeping giants lie
Besides, seeing as how we are under attack by every other team, I don't think there is much cause to complain about a counterattack. It is the Mysterio's own unprovoked aggression that will bring about their ultimate doom. Prepare yourselves Mysterios, the Devas are coming. And this time we are serious.