I see HDG already did a good job of pointing out the flaws in your statements, but I'll try to clarify one point further - I agree that the question doctors were asked was likely "how do you treat patients with high TGs?", and because 28 percent recommended “Omega-3 Fish Oil Dietary Supplements”, while 8 percent said with V, the other 64% likely replied "with fenofibrates or niacin or Lovaza" - and there's little difference between DS fish oil and Lovaza except for FDA approval and quality control, so it's not a stretch for a doc to rec DS fish oil over a costlier Rx in L/GL. My PCP never once suggested I switch from DS fish oil to L to lower my TGs years back when I refused to continue the fibrate/niacin regimen that made me feel like crap - I said "I'm going to try fish oil and garlic instead", and actually had better results w/o side effects, although I now know I wasn't taking enough fish oil to get EPA benefits (or the DHA runs).
Also consider this was done two years ago, and the knowledge of EPA and V has expanded by leaps and bounds since then. Throw in the fact that the FDA has proclaimed elevated TGs are not a risk factor for CVD risk - I'd be curious to know the results if this poll were repeated today.