Kharchla falls apart at the end of the season, at least from the limited data we have on it. Remember his FR year how he came out like gangbusters, looked like a championship candidate, but lost 4 matches over the final two tournaments and limped home to a 7th place finish at NCAAs? He got beat up over the course of the season and physically was barely holding it together at the end. Then he regressed over the next couple years while battling injuries.
To be perfectly honest, I'll be surprised if he makes AA next week, despite his skills.