I have changed this in the poll system. I would note that there are various cases right now that don't expect additional things to be loaded -- they expect the dependencies to already be available. This is usually the case with elements where part of the system has already been loaded (something like the ACP quick search) and likely won't be changed (in the short term). Issues like this can virtually always be worked around by ensuring that the dependency is loaded in all cases (eg, with the poll vote form and the poll results form).
