It is funny because the American delegation and western Europe fought for 3 per country for decades.
Now they are the ones most effected by it.
I do agree with 5-4-3 that it should go to 3 per country.
In Rio, half the teams used 3 AAers and the other 3 teams did not. BRA, USA, RUS, FRA, JPN, NED all used a 3rd AAer, and out of these 6, 5 teams had to drop a gymnasts as part of 2 per country. But Netherlands had van Gerner in 25th spot
So allowing these 4 wouldn’t have been a big deal as it didn’t eliminate any athletes from non-team countries.
The problem with that would be that ITA would not have representation in the AA final.
These athletes were bumped: Douglas (USA), Sugihara (JPN), Melnikova (RUS), Barbosa (BRA)
Here are the last 4 qualifiers: Vanhille (FRA), Ferlito (ITA), Scheder (GER), and Ferrari (ITA).
Barbosa ended up subbing in for Saravia and ended up not being able to finish the meet after getting injured on floor.
So we were just missing Douglas, Melnikova, and Sugihara in the finals.
If you look at the 4 who got in after 2 per country, the results were not too crazily impacted.
Vanhille was 21st and Scheder 23rd.
The Italians did better with Ferrari moving up to 16th and Ferlito in 12th.
But none of these four were anywhere near medal contention.
Arguably Melnikova and Sugihara would not factor into the medals. So the only case to consider would be Douglas, since she was 3rd in qualifications and easily could have taken a silver or bronze all around medal.