Hi Nitin,
You will likely be pleased to know that the poll was conducted after the Reinhart-Rogoff paper's conclusions were called into question. In fact, the vote tally was gathered Tuesday through Wednesday, whereas the RR story broke last week.
This poll was run in CFA Institute's NewsBrief so respondents are all within that audience and the NewsBrief covered the RR research story. All of this to say that I think the above results likely incorporate a discounting of the RR story.
With smiles!
Jason