I don't think anyone has objected to sea planes on the lake in general, only to setting up a situation where there could be a significant increase in a crowded area.
I also don't think any of us are nuts (except...maybe...)
Nevertheless, an interesting story. I objected to the Pier 19 runway idea, but I have zero sympathy for the captain, and in a way she got off lightly. That was worse than negligent, somebody could have been badly hurt