i reckon, its his choice to do engg if he wants to....
btw HSC2010 im in the same situation as u i got 88.15 but got 2 bonus points bringing me to 90.15. i was too late to apply for FEAS but check this out:
https://www.eng.unsw.edu.au/feas/apply/help/faq.htm
and read FAQ #10. there a chance...