I agree it should ultimately go. It's dangerous and unsustainable to keep it.
There are quite a few people in housing estates around it who have a view of it from their windows, which has to be distressing, particularly since some of them will have lost friends or family. It's a shame that the process around the investigations has been so awful for the families and survivors. It's all been handled really poorly.
It does have a small footprint and is in a very crowded area. As PP's have referenced, it's attached to a really lovely little primary school and essentially more housing. It's right behind a busy leisure centre and a big academy school, so the only thing that could really replace it would be another high rise, which would be a terrible mistake, imo.
A garden with a memorial would be the right thing to do.