Without them, the fight would be even more difficult than it already is. I think what the video doesn't (and probably couldn't, for several reasons) is the kind detailed behind the scenes stuff that goes on. Maintenance, data link, airspace, sheer demand, and other issues aside, one of the things we dealt with on a regular basis as end users was the sensor operator. Don't get me wrong, they're very good at their job, but often times, they're only as good as the directions that they're given. There did seem to be a bit of a tendency for them to want to execute their standard search patterns, or investigate something they wanted to, instead of play follow-the-guy-on-the-donkey. Just like with most things, though, they were awesome when they were given the information to do their job.
I'm not saying that it's valid or invalid, but I would also point out that there was an article floating about last summer (I think) about Pred/Reaper folks who were claiming PTSD or similar symptoms. The yut yut side of me wants to go Gen Patton on them, having lived in the shitty conditions that many do over there. But the more I thought about it, the more I kind of thought that it could mess with you, passing the controls after killing dudes, so that you can go pick up the daughter at soccer practice. I wonder if, in that respect, the austere conditions and separation actually enable people to compartmentalize and do the job at least a little bit better? Like I said, I'm neither agreeing nor disagreeing with their claims, but it's something to consider.