Common, I'm busy I cannot watch all games. This is like betting a horse that is not there or betting a boxer that does not play. Most casinos will return your money.
No, it's nothing like those things. In DFS a player doesn't need to play in order to have action. That's part of the risk/reward that allows people to gain edges. You see it a lot in baseball where people start players in late games that have a chance of rain. If the game gets rained out, you get 0 points.
This is just a situation of paying attention. It's hard to feel bad for people who don't follow the sport at all and cannot find the 1 minute to see if the players on their team are actually playing. Taking injured players out of the pool is irresponsible because you are putting the onus on the owner to decide when to add them back in. When they are probable? Doubtful?
You started Brook Lopez. He was ruled out for the rest of the season in December of last year. You don't really have to watch every game to be aware of that.