Because you can't get people to EQUIP THE DAMN CHAMPION MODS on content as straight forward as the Guardian Games strikes. Or put on a damn headset and a mic. I had to endure a Training run last night where BOTH of my "team mates" had the wrong weapons equipped, and only one of them were running any of he champion mods. I was able to switch around my gear....but we still wiped THREE times as a result. As I basically had to drag these two clowns through the content In a GM strike, the content is going to be MUCH harder....you're going to have LOCKED loadouts so if you don't have all the champions covered you're just screwed.... ...and if you wipe you start the ENTIRE strike over. If you're in a clan with nearly 100 members, then it shouldn't be that difficult to find someone in that clan who is willing to run a GM NF. But MM would be nothing but a setup to fail at best.....or a Trolling/Griefers Paradise at worst.