I upvote @BobJansen's points; and add one small incremental observation.
Institutional investor scepticism about quant isn't so much scepticism about quant. It's more the fear that quant describes the current regime. Which investors believe (maybe correctly, maybe not) they already understand. Unless quant can tell them how this has changed, and do so fundamentally rather than quantamentally, then investors feel they have little need to learn from quant. So they are free to ignore...
Meanwhile, the peer-review process for academics acts as negative click-bait for institutional investors. Institutions worry to their wit's end about relative positioning risks, versus other institutions. So the benefits of any quant alternative have to be assessed against the risk that this exposes the insto to risks that other instos do not face, because they do not have the same quant!
The equal-and-opposite problem here is that the quants who can navigate investor-space have no incentive to publish. It's maybe not their hiding any "secret sauce". It's rather the reality of their jobs requires them to be ready to flip their views on a dime... which is hard in any peer-reviewed journal. "Sorry- the regime changed, so I changed my mind, what would you do different when the facts change, Madam? (Keynes)" isn't a script that financial journals appreciate... but it happens all-too-often on trading floors...
therein lies your problem, methinks.