There have been recent discussions about it. I point you to https://www.lotro.com/forums/showthread.php?540445-Lore-Masters-support-roll-then-and-now&highlight=wound+removal, where one player lists all the changes that happened when the trees came out. Of note: "For an unimaginable reason, my wound-diseaeromoval is no Fellowship anymore!" There's also https://www.lotro.com/forums/showthread.php?533699-Improved-Knowledge-of-Cures-%28IKC%29&highlight=wound+removal.
It used to be a group wide skill, but Turbine figured that was far too useful.
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Whyaduck, hunter
Bahtring Rahm, guard
Balagan, burglar
Cuisanart, champion
JeffreyT Spalding, captain
QuincyAdams Wagstaff, LM
Rapakivi, Rune-Keeper
RufusT Firefly, Warden
Whyanochickens, hunter frozen at 65