> with five copies of Pluribus playing against one professional
Although this configuration is designed to water down the difficulty in multi-player setting.
Pluribus against 2 professionals and 3 randos would better test. Two pros would take turns taking money from the 3 randos and Pluribus would be left behind and confused if it could not read the table.
In my scenario and tournament play. Are you sure?
I would be shocked to learn that there is a Nash equilibrium in multi-player setting, or any kind of strategic stability.