You are setting up a strawman [1]. I reacted to the grandparent who stated:
Debian packaging has a nice feature too in that you can check the source used to build it, and any of the packages will be reproducible.
Which is demonstrably false, as the link in my comment shows.
[1] I never said that packages are not peer-reviewed.
Reproducible builds are an additional safety net and you can easily check what differs between builds.