This could be argued either way, but with Arc in some form likely to fall into the hands of an increasing number of non-admins this may become more important. (Not that admins are immune to this either.)
The user creates a view. They drag and drop the dimensions around, select their subsets… but forget to turn on zero suppression… hit refresh and boom, they end up with a huge view, the overwhelming majority of which are zeroes. This seems to be less of an issue with Arc than it is for Perspectives, but still it can potentially lock up the server for a disproportionate amount of time, depending on the circumstances.
I think it would be prudent to have zero suppression on by default when creating a new view, though to meet all needs an option to turn that off would probably be useful as well.