I've deliberately decided to only make minor changes to the riverside park since it was at least previously still under construction and lacked sufficient imagery of the (nearly) fully completed state.
It's still possible they have or will remove such building/structure.

Above comment is otherwise off-topic for this note, as it concerns an issue with an external data source. Refer instead to
https://github.com/osmlab/editor-layer-index/issues/1889

It does look as though this will be a long term issue. However, I'm keeping this and similar notes open, as other imagery layers likely will still update in the near to medium-term future, or already have (elsewhere).