That sucks, I haven't really run into that issue. Did the 25 strikes for the bad juju bounty and never ran into any problems with people going afk.
Speaking of Strikes, I really hope with the next couple expansions Bungie goes in different directions with strikes to make them more unique. Meaning, make them like mini raids. Keep them short but introduce unique elements specific to that strike like for taking down bosses or certain items that need to be used (ex. relic). Or introduce elements that require a bit more teamwork. I mean it's fun to sit back and run them, but they are kind of mindless and don't require any communication. It would be nice to have that option when you can't get enough people to run a raid or have the time.