I’d weigh this 50/50 for probability.
Millennials make up a large part of the military, and many were huge Bernie supporters. Anyone who thinks the military is filled with conservative, god-fearing young people has not been paying attention. Many new recruits were have no idea what the pre-PC military once was.
They only polled the transgendered in the military.
I talk to Navy people everyday and I’ve not seen very much dislike of President Trump.
Personally I think it another phony baloney poll.