That would depend on who is doing the judging. I imagine God and people would probably come down in different places and we would be surprised at the differences.
There is also a difference between unorthodox and heterodox.
Unorthodox theology directly contradicts an orthodox doctrine.
Heterodox theology is different from traditional orthodoxy in some way, but not to a degree that is considered heretical or diametrically opposed to orthodoxy.
Evolutionary creationism by itself is not a Christian doctrine. People who embrace evolutionary creationism may or may not have heterodox (or even unorthodox) beliefs about various Christian doctrines like the doctrine of creation, the doctrine of divine providence, the doctrine of humanity, the doctrine of Imago Dei, the doctrine of original sin, the doctrine of the atonement, the doctrine of inspiration, the doctrine of perspicuity of Scripture. But I think it is possible to maintain an evolutionary creationist position within a completely orthodox framework.