The problem is there aren't enough feet to make this vote count.
Curl isn't even that great to archive with anyway is it? wget --mirror used to be the hotness.
I think it's a valid point to raise, but how much you care about it is going to depend hugely on what you're doing.
Obviously if a company wants tight control over their content then this may work to their benefit - although they may still find that their ability to render their own content requires non-trivial maintenance over time.
But that's a pretty narrow view of the web, and not everyone publishing on the web fits that model.