At the very best I can see Shocker as an anti-hero, but even that is far fetched to be fair... He seems like the kind of guy who'd only become a good guy for the money.
I kinda doubt Marvel would allow that since Spectacular is the more jokey title, but they could allow both to be like that while Spectacular is just the one with crazier adventures...
I'd say that's more of a case of Zdarsky gradualy learning how to feel the characters than anything else to be fair, and this process is still continuing considering that the way he wrote Spidey in Spectacular#301 is better than previous issues.