Why on earth are universities doing any of this considering all restrictions are being lifted before September?
Because restrictions will may be reimposed in the winter.
Because we still have to comply with instructions from our local public health authority.
Because we still have to comply with health & safety requirements and satisfy our insurers that we have done so.
Just because Sajid Javid waves his magic cock and says we're all free to infect each other from 19 July, that doesn't mean every institution is absolved from responsibility to protect its employees and - in the case of schools, universities, etc. - its students.
And because, as someone else said, universities were already moving in the direction of greater use of online learning and they are not going to reverse that now. The fact that they haven't thought it through in terms of its impact on universities' role as landlords is a separate issue.