I've seen other EOs criticizing the West for having paid too much attention to Augustine ever since his own lifetime. This is probably too slippery a distinction to be worth arguing over.
The first heresies did arise in the East, but no time was wasted for the Church to treat such as heresies.
I wonder what Athanasius would have made of that during his many apparent defeats.
Compare that to the way Protestants reject the Jehovah's Witnesses and similars without any need for protracted struggles or deliberations. I'm not criticizing the early theologians of course; merely being early meant they had to fight to initial outbreaks of heresy, rather than revivals of already-defeated heresies, and had to work out the precise formulations instead of having them already written. But do be accurate about what happened.