JS07 No, if you’ve received a conditional offer, as long as you meet those conditions (ATAR 90 and Chemistry) you’re good to go!
That disclaimer is mostly for domestic students where there are minimum requirements to be
eligible (note: not to receive a conditional offer) but often higher results are required due to competitiveness. That said, the same situation applies to (mostly rural) local applicants who get conditional offers, as long as they then meet the requirements, their offer is secure.
I loved my time at UTAS and while I was a local I did become good friends with a few international students who also seems to enjoy themselves. All who wanted Australian internships got them.