Is it wrong to have a "loading" spinner wheel in bottom right corner?

I had reported a bug, where the user was able to click a delete action multiple times, i.e. Deleting something multiple times which would result in an error.

I disabled the button upon action, and put a spinner wheel.

Today I was told that this is completely "not normal" and to "stop doing weird things"

What do you think? What are better, more standard options?