Couldn't you just have someone take one for the team, strip naked, and die over and over to the boss until they get 10 stacks and then people can just super EZ mode clear the boss.
There is a minimum attempt requirement before the system 'credits' you with a wipe. It should always be more time-efficient to not wipe at all, but if it isn't we can tweak the threshold.
Raid Finder needs to be even easier?
We don't think LFR is too difficult, but in order to make it the right difficulty for 25 strangers with little-to-no coordination we did have to trivialize some encounters and mechanics. With a system that can correct for variances in groups, encounters don't have to be quite so binary (trivial vs. impossible). Mechanics can be more meaningful, while encouraging players to stay with groups that run into some difficulty, rather than quit and re-queue.