If you ever actually worked at Gallup, you'd have likely spoken to someone who expressed similar feelings about internet pollings in the upper echelons of your staff, since they're the ones that first condemned the accuracy of online polling and continue to quite often - in fact on many networks you saw some of their top brass explaining why the online polls were flawed, for exactly the types of reasons I listed.
Well, are you sure that Gallop isn't only against Internet polls because they take business directly away from them? Think about it, wouldn't you try and put your competitor in the worse light you possibly could when asked about them?
Gallop: Our widgets are the best!
interviewer: What about the internet widgets?
Gallop: oh, they're ok, if you don't mind the tolerances being off by more than 2%
interviewer: What are your tolerances?
Gallop: er... ah... 2% but we strive hard to keep ours to the low end of 2%, unlike internet widgets who is shown in these two graphs to be well on the high side of 2% in these two types of widgets they made in 1980 - 1985
and so on.....