Was Stewart a wimp for not finishing the 2nd moto of Unadilla?

hahahhaa soo think so i was there we were watching him and he just pulled off i was like what??? and yea his first race back . on his first moto he came in 3rd Dungy killed him he was going off the sky jump when stwart was momming up the rythem hill and yea he deff wimped out and no he was in 19th he used to win but this year is dungys