It also bends credulity. It suggests 7 of 10 developers work for companies (or know someone who has) that fail to prevent onslaughts of their developers from leaving over deployment problems.
The "know someone how has" clause seems like it muddies the apparent purpose of the question (to gauge how common this is). 15/15 developers on my team either are me or know someone who is me, therefore being me is extremely common? There could be a small handful of people bouncing around from company to company for this reason and a large number of people at those companies would be able to answer "yes."