But you have repeatedly said it’s all about outs. Why is the fielder responsible for fewer outs better in your eyes? Remember, in this hypothetical example, each shortstop received 100 groundballs IDENTICAL to the other shortstop - same speed, same location, etc. No one is berating him for not getting to them. (Why you went there is beyond me.) In fact, the shortstop with 10 errors is far more likely to get the negative commentary, especially since it wasn’t established that he made the errors on all the 20 additional grounders he could reach, just that he made 10 errors.
If it’s all about outs, as you have repeatedly said, than the player who gets more outs is the better fielder. Not the player who is perfect in his more limited sample. At the end of the day, letting more balls go for hits doesn’t make you the better fielder, which is exactly the flaw in fielding percentage I don’t like…