What makes them not A-Spec?
The player is controlling the car.
You earn A-Spec experience.
They even *say* A-Spec in the event listing.
The most recent ones have been repeatable.
Yes, they're not under the "A-Spec" list off the main menu. Special events are A-Spec events too, even though they're not there.
People complained there wasn't enough to do, so they added Seasonals. Now there is plenty to do, it's just not the "right things" to do. Even if they were to add events exactly like you suggested, people would still be complaining that "there's no point since the AI doesn't present a challenge."
No matter what PD does to the game, the "gimme gimme gimme gotta have it now gotta get every car and complete the game in a month" crowd will never be pleased.
I can't wait until a few months from now when all the whiners have moved on to the next thing and leave this forum alone.