What do those advocating reduced fees think the savings to Universities have been by moving online?
I completely accept that one of the best things about going to University is 'the experience', but the shape of that experience is largely up to the student. It is not up to the University to provide parties, facilitate the making of friends and so on. Universities are there to provide an education, which they are continuing to do, whether on or offline, and it is for that that the fees are paid. The Universities are not reneging on their promises to educate the students, whether that education happens in the way those students would have preferred or not.
Where I do think they have been (at best) disingenuous is to suggest that students would be safe, better off or well advised to choose a return to campus over staying at home. I can understand that the motive for this will have been that a significant number of young students would choose an institution that offered 'the experience', and they need the money, given the expected reduction in International student numbers because of the virus, and the reduction in research opportunities that Brexit will bring. Nevertheless, I think it was cynical to suggest that 18 year olds should rent expensive rooms when it could have been predicted that they would be subject to the sort of restrictions that would negatively impact on their experience at University.
I feel sorry for this year group, who have been disproportionately impacted by the virus, but (whilst I am firmly in support of fees being abolished) I'm afraid I don't see an argument for their being reduced because of online provision.