Something worth noting as well in regards to survey statistics... According to SurveyMonkey, feedback from about 100 people is enough to get results that are within a +/- 10% margin at least even as a population continues to grow. Over on the general discussion page, the job design feedback forms I've had out have collected about 150 votes from players that aren't just forum frequenters and lurkers, but also people from reddit, tumblr, and twitch. Based on the chart on SurveyMonkey, that would put us somewhere between a +/-10% accuracy range and a +/- 5% accuracy range.
I worked out the average score from 1 to 10 that the healing role has earned as a whole, which has placed it at a 4.85/10. If we stick to the +/- 10% value, that means, at best, the general reception of healers would a 5.85/10, a fairly mediocre score. That, to me, sounds consistent with the amount of upvoting the OP received as well. I don't think the general population may hold the same fervor as the people who post here, but I do think there's enough truth to that post that many would agree with it at least partially.
On a side tangent, that also means the values we have for the desire to see more DPS actions on healers that I shared yesterday indicates that the true percentages across the population of FFXIV players would fall within the following ranges:
WHM - 73.2% - 93.2%
SCH - 74.8% - 94.8%
AST - 56.5% - 76.5%
SGE - 76.3% - 96.3%