The policy for Remote Study was always on a semester by semester basis, which enabled the university to be flexible and adapt to changing conditions as the pandemic progressed.
When you applied for Remote Study for Semester 1 you were informed that approval for remote study is given on a semester by semester basis.

Also as indicated in question 5 the UK Government will only allow universities to maintain immigration sponsorship for students to study remotely up to 6 April 2022.