No, you think a video game game can force someone to care. It cannot. You need to care on your own accord in order to learn and improve your gameplay, not the other way around.
The LFR playerbase is a lot more casual than the reasonably good players that play a few hours a week and still get mythic 10+ done once a week or kill some heroic bosses every now and then. LFR people want to be able to start a raid at whatever time is most convenient or when they just feel like it, and avoid all the group-matching stress of pugs or scheduling rigor that guilds do, so LFR gives them a very smooth "raiding" experience. You are not going to change their mindset or preferences by making it harder. And I imagine that they won't learn much if they just die and stay dead most of the fight.