I’m really pleased he is still working on the app. I tested the ability to delete my own alert - works fine. Select the alert, find the Delete option at the foot of the screen, answer the confirmation dialog, done.
The patch installed recently may have been lodged with apple many months ago.
It is possible he is waiting for the next version of sotawatch, or specifically the new API before making further changes.
Anyway I will thank him for releasing the recent patch and encourage reinstatement of the ability to create a spot from an alert, as well as correcting the time bug.