Yes I would. Control is something your teacher may want to have, but if you are comfortable with automatized processes, go ! If your teacher complains, too bad for him, but unless he requires you to provide EXIF data, he’s got no way to verify (unless he’s really good and assuming you’ve not cropped your picture).
I have had some pleasant surprise with photos taken with my phone. Some of them now even let you change focus, ISO and shutter speed. Phoneography is just photography with a fancy name. You should always produce things you love, not that you are required to. Sometimes having limits is good, but those should always be employed to learn something, at least within a scholar environment. Limits are also good when you impose them on yourself. But limiting one’s potential by invoking outdated facts and stereotypes just prove the teacher to be prejudiced against a certain type of photography and certainly not limiting his/her students for the sake of learning within a particular frame. Even if it’s the case that phones lack features, so what ? It’s an art class, not a supermarket’s catalogue shooting. Art in photography should never be reduced to DSLR.
Most of all, try to prove him/her wrong by showing how a phone can produce something meaningful/beautiful/whatever. If he/she’s a good teacher, he/she’ll learn from that hopefully.
Thanks ! That’s so nice, I’d really love to try things with more than one person one day but I find it hard to capture someone else than my gf. All the best to you !!