The raid finder did not kill the game.
All raids are being played and completed every week.
Perhaps guild membership is your best option, but not required because most fill remaining positions from within the community, i.e. ‘pug’.
Removing raid finder, an active and enjoyable part of the game for many players, might be the final nail in the coffin.
Your post is off topic, but I would have supported it fully had it been a titled thread
Funcom, Please Add a Proper Dungeon/Raid Finder.