Although the survey is of some interest, it is also disappointing. On the FP cite, they do note that it is an unscientific survey, but I missed it if they pointed directly to a central flaw indicated by one of the very last questions in the survey:

How many years ago did you retire from military service? (not asked of Active
Duty)
8% Active duty
3% 1 year or less
6% 2-5 years
11% 5-10 years
71% 11+ years

So there is very likely a real skew to the survey. Useful would be a survey of 'serving' officers......