If there is any kind of petition we could sign to endorse this approach, please post a link here.
I don't want to get too conspiratorial, but I'm pretty sure that Manfred won't take any action because MLB is complicit in a lot of what happened last night. I'm reading through the
2020 MLB Operations Manual and there's a pretty clear chain of custody on the results of positive COVID tests: the very first people notified are the Joint Committee, "composed of one non-medical representative from MLB, one non-medical representative from the MLBPA, and two physicians (one appointed by each of the parties)." So a representative from MLB knew that Justin Turner tested positive before anyone on the Dodgers (including Turner) did. If the reporting is correct, then the Joint Committee would've known about the positive test immediately prior to the Dodgers learning about it, so we can probably assume that they knew about it in the 7th inning or so.
What the Operations Manual doesn't make clear is whether or not the Joint Committee is notified of any
inconclusive tests as they come in. The reports say that the Dodgers learned of Turner's inconclusive test in the 2nd inning. It's possible that, in the event of an inconclusive test, the Joint Committee is bypassed and the information is relayed straight to the team and player. However, I doubt that's what happened. There was a
Marlins-Orioles game back in August where the first pitch was delayed because of several inconclusive tests, and the decision to delay the start came directly from MLB. So in this instance, MLB was made aware of these inconclusive tests, and MLB delayed the game until the tests came back negative.
So someone at MLB knew that Justin Turner had an inconclusive test in the 2nd inning, and someone made the decision not to take any action until a second test came up positive in the 7th inning. For two hours, someone from MLB let a player with a non-negative test result run all over the field, interacting with teammates, competitors, coaches, and trainers.
It's harder to lay the blame on the post-game stuff on anyone but Turner and The Dodgers, as he clearly violated the self-isolation protocol which required him to "immediately wear a face covering" (which he failed to do) and "isolate from all people" (which he also failed to do). Exactly where he went in the stadium after he was removed from the game, and exactly what kind of supervision he was under while there, wouldn't be spelled out in the Operations Manual -- he would've been sent to a "Dedicated Isolation Area," but what happens after that is up to the team and its COVID-19 Action Plan. I'm guessing that either The Dodgers' Action Plan wasn't followed (which would be Turner's fault), wasn't enforced (which would be the team's fault), or both.
Long story short, there seems like there's just enough plausible deniability to spread around, and MLB probably has an incentive to make this all go away quietly, so no one will be punished for any of this.