Yes. Esuzu and I know enough of it. We just played an awesome game with NinkiCZ and his friends and I was playing queen. Now if you have the right build it's very possible to be the best pusher in the game and we were slowly tipping the balance when the other team began an rampage to lock every flag. Since Erebus is insanely OP I couldn't do anything about it: sure I could beat him in a real battle, but he would just port in, lock flags, do a bit of damage and bat away. We even had him in a 3 way gank but no dice. Before this becomes a rage against Erebus: they won the warscore fight and from that moment onward we were on the defense. Not because they played better or anything, just because he could lock/port/potion in my face.
If a demigod lacks a stun or interrupt he better be really really good at pushing or support. And right now I don't see how Doc Oc even comes close to being good at anything. He lacks damage, his warp is plain inferior to LE's, his minions are bad save for the explode thingie at level 15, and his mana skill is not very usefull imho.