Most pilots do feel the need to be aware if they are flying through a MOAs, VR routes, or maybe an alert area. Just because you can technically fly through these unimpeded by atc, if your vfr, doesn’t make it a good idea. I’ve actually worked these cowboy guys out of NFW when I was at Sheppard afb, they were pretty predictable and would cancel IFR so they could transition through our MOAs at Sheppard to get to R5601, no issues, they seemed to understand the risks well. Also to me it seems safer when these military pilots take the time out of their training to "escort" a pilot through a moa. It always makes me a little more at ease when I give traffic to an aircraft operating within a MOA and they start heading toward where I said the traffic is to actually get it in sight, "play" with it a little and resume their maneuvers after they are sure the GA guy is clear, I’m not sure if that’s their goal but it is safer than just continuing their maneuvers and hoping the GA guy is looking for them.