The phrase
"major misrepresentations" refers to significant or important false information presented in a misleading way. It means that someone has distorted or misrepresented important facts in a significant manner.
Full definition
In his open letter to Martin Durkin's Wag TV, one of Five
major misrepresentations of the scientific evidence in the film concerned Durkin's suggestion that the global temperature slump in the 1950s and»60s, which was concurrent with rising emissions of greenhouse gases, was problematic for orthodox global warming arguments.
Starting a relationship based on
a major misrepresentation will backfire, period.