The gist of the article -- "I don't know you or your situation; take my advice with a grain of salt" -- is reasonable. Nevertheless, it's reassuring when authors take a moment to describe their context -- it might not be clear to the reader -- or describe the limitations and potential downsides of the suggested solution, preferably both.
It's a good point in general, however while the line:<p>> this is <i>your</i> context which is away from the norm<p>holds really well for the first example (being unable to move away from IDs due to various constraints), it doesn't seem to hold up so well for the latter example. I guess most people do care if their logo is not visible when being printed, and if is hidden in google searches. So, would that mean that it's the author's context which is away from the norm here?