Fudging the data in any way whatsoever is quite literally a sin against the holy ghost of science. I'm not religious but I put it that way because I feel so strongly. It's the one thing you do not ever do. You've got to have standards.
The families of many athletes - incensed at the sports leagues and hoping to make games safer overall - are increasingly making the brains of players who die prematurely and suspiciously available for study. Some athletes are even making the bequest themselves.