I kind of agree, but it goes both ways. Has Jarred said that there was no review? I know that he stated that rust bun passes tests. Now, I don't know the amount or quantity of coverage, but as a thought experiment, let's assume they are good. What does that count for?

I think most people believe it unlikely that one million line of codes can be reviewed in one week, and the fact that tests pass does not imply good code.

I have no idea whether the new or old code is/was good, just pointing out what seems like a plausible thought process for people who object to this rewrite.