From what I can tell, science used to point to this as the only/primary limit to human-brain size, but more recently the picture seems a lot less clear, with some indications that pelvis size doesn't place as hard of a constraint as we thought and there are other constraints such as metabolic (how many calories the mother can sustain during pregnancy and lactation).

So overall I'd say you are technically correct, even though this doesn't really materially change the point I was making; which is that the size of the human brain is constrained in ways that the size of data centers are not.