I actually can't tell if the artist is even TRYING to portray it as a bad thing
That's the beauty of it. Someone who has a hate boner for women and homosexuals being in the military will concider this to be bad... Because it shows a woman and gay men in the military.
But if you really look at the comic, you'll notice that...
Well the first thing I noticed was that the woman is left handed, but that's just me. But looking at the picture it just shows soldiers on patrol and there appears to be nothing negative about the fact that they aren't all heterosexual men.