That sounds suspiciously like something a taboo would say that has something to fear from being looked at. ;)
I think this chain of reasoning is made of links that do not self-evidently follow. From my lay perspective, taboos seem more complex, resilient and variable to require a perfectly dogmatic approach to hold up. If they were this easy to bring down, they'd all be gone.
I'm also not sure what a "culture without taboos" is, or one has ever existed. Also, what is meant by "peak"? Is there an optimal amount or set of taboos? How do cultures with taboo-ical differences (and their peaks) compare to each other across space and time?
I think it is good and healthy to approach taboos with curiosity, whether it is to interrogate them or to appreciate them more.