But Wright makes a similar claim. The triumph of bourgeois society is, in his view, just one instance of a process of cultural evolution that parallels Darwin's natural selection. As a result, history has an almost inevitable progression. Chiefdoms beat hunter-gatherers. States beat chiefdoms.
Capitalism beats feudalism.
The path, if not completely fixed, is pretty clear. You don't see feudalism following capitalism, over any sort of long run. Barring some sort of planetary extinction, global capitalism, verging on world government, is where humans were destined to end up at some point, which happens to be now. So they got a few details wrong. Religion and culture are often reduced to epiphenomena.