I'm completely serious, delete LFG for raids, replace with community finding/building tools. Raids themselves aren't bad (though still crazy difficult). Raid can actually be fun if you have a good instructor & geared people who are willing to learn. What isn't healthy is people going to LFG, and seeing insane requirements and tons of clears being sold in exchange for gold over actual training runs. And doing a training run over LFG is tacky because you dont' really know if the people who are joining the group will have the required gear for the roles you need (it doesn't tell you/let you filter who joins, etc). In other MMOs the technical difficulty isn't as bad (alot of the mechanics in GW2 are twitch) and the gear you need for whatever class you're playing also comes much more naturally (or even overlaps your multiple roles), whereas in GW2, you have have to spend a lot of time farming for the gear you need, and even gearing multiple roles between professions, just like there isn't a 1:1 mapping in how raids work in this game against other MMOs, there shouldn't be a 1:1 mapping for how groups are formed.
I think deleting the raid LFG would be the healthiest thing for raids. And if there's a place for people to find the communities they're looking for instead, that will work. If they're not supposed to be puggable, don't imply it with a tool.