That article goes over some problems with the initial study, and some issues replicating (although the follow up study did find a similar effect). Hardly seems like a slam dunk, though, and given those issues it seems the effect is likely weak if it does exist.

More broadly, I question how effectively "endogenous interest" can be accurately measured without risking a lot of confounding factors from the broader society. I didn't read the original paper, maybe they tried to account for that, but I can't really see how you reliably could. People's interests don't exist in a vacuum, they're tangled up in their upbringing and society. If they'd done a similar study a century ago they might have found women having a high endogenous interest in being homemakers.