There's a matter of suspension of disbelief. Like I might not be so keen on muscle girls (for one example.) but if one is practically pulling my dick out I'm either gonna yolo and get said dick wet or have a very clear conversation. MC is doing neither because the author needs to make 800...
For reference, the (former) hottest pepper, the Carolina Reaper, peaks at about 2 million scoville units. Pepper X is the current hottest and peaks at 3 million. I feel nothing but pity for Gaia's intestinal tract.
I know that some of the students would be scared of her but you know, you KNOW at least one guy (Maybe also one girl) would see the 8 foot tall woman with beachball knockers and be like, "Step on me mommy."