I don't buy this; to finance a group to do the calculations "properly" would take... $3m, give them 3 years to do it. I would bet that any of the big uni's would have a group who could do it, but perhaps we could spend $6m and get it done twice to check?
On the other hand we could spend $1000'sM and do what we are doing with satellites and detectors to look for dark matter over a period of 20 years.
OK it's because of "vested interests"... well, the Chinese, or the Belgians or the South Africans could (would, gleefully) do those sums too (did you know, many people from South Africa and China went to MIT? more shockingly quite a few Belgians did too). Now, if they did their national academies would gain prestige, the investigators would win medals and fame.. So why has that not happened?
The maths here call bull on you.