Intentional losses or no, she's among the higher ranked of tier 3, as you've said before. Fighters like her, Hotshot, and maybe Thundercracker would be good opponents for rookies. Good, but not too good. The kind of enemy you grind against for a while to improve your skill. Besides, the total number of wins and losses accounts for repeat attempts. So that 23 could easily have a low number of individuals losing repeatedly.
Simulations are impersonal, and can be adjusted. They also don't have schedules and personal lives to work around when setting up a match.