There were two separate issues
a) "death grip" - holding tightly
b) just bridging the lower left band
But there was also a question of degree. It's clear that different users experience the problem to different degrees. It's not so clear why that's the case.
More to the point, though, those who think some people made too much of a stink about it might consider that that stink-making is undoubtedly at least partly responsible for the effort to achieve the reported improvements -- if more definitive testing in fact bears the report out.