Once strong enough, it is certainly easy enough to HULK SMASH everything, but you really do have to may attention and defend, even on garbage mobs. A button masher, this is not.
Unless you got the Griffy Preorder bonus... seriously that guy is over powered. Right now he has about twice the Attack and Defense as any other familiar on my team. A "Psych Up" and "Go Wild" and he does about 3-4x the damage of my other attackers.
Compared to the problems I faced with garbage mobs when I was level 1-10 or so, now I'm around level 35 (player level) and pretty much stomp everything, even without using Griffy. And even Bosses are falling quickly. I beat on them and they are at 50% hp then Drippy pops in and says "Here's the secret to beating this guy!" and I don't even have to worry about it because the boss is dead in another minute.