He did one race in an NHRA Pro Stock car and didn't stay there. Why would you think he would permanently go to Indycar? The money is better in NASCAR right now, even for a mid-tier ride, which is why folks like Hornish Jr., Danica, Villenuve and Montoya are toiling around wasting their time being above-average at best in NASCAR than go back to IndyCar.
Yeah, I was surprised to find out a few years ago that's all Indy rookie orientation was. You do like 5 laps at 205 mph, 5 laps at 215 mph and 5 laps at 225 mph. I thought Indy rookie orientation was something more detailed, but it's basically showing you can drive fast and not be a rolling roadblock on the track.