Let me play devil's advocate here and say that while it's entirely true that it's unfair to the people playing, you can't expect friends not to que up and play together.

Private matches get boring quick and lack certain gamemodes. Any game, especially Titanfall, is much more fun to play with friends, so you shouldn't be disallowed to que with your buddies.

It should also be mentioned that just because there's a queue, doesn't mean it's a pubstomp. For example, I que all the time with my /r/17thLegion buddies - but we're ass. It's not a pub-stomp if we lose. In my eyes, it's only a pub-stomp if the people queued are insanely skilled (like RTS or -eR-). Also, certain gamemodes shouldn't be considered pub-stomping, ones like CTF and LTS, that have been deemed high skilled and competitive gamemodes by the community.

Perhaps one solution is for pub-stompers to limit themselves, (by maybe using sidearms only, or a completely new loadout) to make things a little more balanced, to simply "go easy", or back-out if you're up against a bunch of Gen 1/2's.

And besides, a few individuals have chosen to be "pub-police" and will join matches against pub-stompers and try to curb the behaviour.