As you said, it doesn't matter.

here is the poll from your source http://www.langerresearch.com/wp-con...ntonemails.pdf

Outcome of this issue changed likelihood of supporting Clinton?

more likely---10% these are the people that will not vote for her

less likely---28% these are the people that are less likely to support Clinton

no difference---58%

[missing --- 4%]

They say she is favored at 78%.
Less likely does not not mean definitely not supporting Clinton.

Has much changed?