Yes not every Muslim who believes it's obligatory is an extremist but its extremism when they like Genesis said treat those who don't in a lowly way & think that "only niqab will bring them salvation" A Muslima wearing a niqaab cannot think one who doesn't is to be looked down upon.
For the record I wear it too but I follow the view of Sheikh Al Abani..ie that its recommended but not a must. Syria maybe a majority Muslim country however it is governed by secular regimes. In any case if it is an all female Uni why do they need to wear niqaab or even hijab within the premises? In fact wearing niqaab when in an all women environment is extreme too. Allahu'alim..I just hope the Muslimas there are not burdened in any manner!