Admittedly there was a bit of hyperbole there, but there really isn't any other direct feedback mechanism for them to evaluate the effectiveness/accuracy of their polls.
Plus the fact that they are clearly not employing good market research tools at this stage makes me worried that they won't have the proper mechanisms in place to judge the feedback they do get from the play testers, and that could well be disastrous. There is, after all, no point in doing a proper iterative design process if your test-analyze-revise cycle is bollixed by lousy analysis.