Except we won't get the expected benefit, because all those eyeballs are attached to a very small number of different "brains" (LLM models.)
The original saying depends on an implicit assumption that eyeballs are proportional to minds, and that among those varied independent scans, different people will catch what others miss.
In other words, we shouldn't assume 5.5x review thoroughness when we hire 11 QA eyeballs but they all belong to Bobby the Beholder.
My point was more that very few brains were looking deeply at the long tail of open source code/projects (other than the maintainers of the code themselves); and for the marquee projects that did get proportionally more varied eyeballs (e.g. postgres), it seems even that level of attention was insufficient for code deep inside the project's core.
LLMs change this. They make it much easier for maintainers and motivated users to amplify the power of their eyeballs.