no, shes doing a version of INTERVAL training... the term "HIIT" is thrown around SO LOOSELY
95% of people who think they ARE doing HIIT are really just doing interval training. which IS FINE> interval training is WONDERFUL, and HIIT should really ONLY BE done by serious athletes, and such. It can really screw with fatloss as well, ESPECIALLLY for a smaller, fit conditioned female tryiung to lose fat........ HIIT causes too much stress when in a deficit
to the OP-- What youre doing is absolutely fine... i agree that you should change up the exercises in between though, so you hit more muscle groups... add pushups or squats or lunges or whatever....... you may ALSO want to incorporate higher intensity on the elliptical for short periods of time..... during your 10 minutes on, do 30 seconds hard a few times....... youre so close to goal, that anything that changes up your routine is a good thing.
Congrats on the 60 lbs lost!