I think he's afraid that the Verizon rep will see it and know that her/his email was leaked. He or she will know right away that Mannequins betrayed him or her, and he/she shall never trust Mannequins with another leak again.
He/she might even contact Mannequins' supervisor and get him in trouble, even though he was going to leave the job anyway. Still, it may turn out to be a humiliating exit.
Our info well, however small, will dry up as soon as he/she sees said document.
And with the misspellings and format, he/she will know that it was his/her email. And might be embarrassed about the misspelling of "Stratosphere", but that's neither here/there.