2 stop would not have helped with anything. Charles pitted after what...20 laps on the hards? His mediums were toast within 5 laps and he couldn't get past Giovinazzi with much older tires.
I'm surprised Carlos was able to hold on to 11th with the pace they had.
Someone in the chassis department screwed up, similar to what happened at Portimao. Let's hope they have it solved for Austria. They might have to start trading some quali results for race pace.