Well, my issue is that "one layer" implies you can just stack it on others, especially if you say "as many layers as one is able to manage", it implies the best option is to add obscurity on top.

As my comment made the case: it's not a simple addition, it's a trade-off, and I'm saying it should be thought about in those terms. I didn't find that was evident from what you said, I guess the "push back" framing was more negative than I intended.