Come on guys, it's 2019. A lot of us aren't teenagers anymore and we have full-time jobs. Having a dungeon finder doesn't ruin classic servers nor destroy communities, it just makes it simpler for people with limited time to do group content.
Dungeon finders are plague on MMOs! I just don't understand why someone want them on a TLE server of all places.
It never actually worked for real content, its only used on live for agnostic dungeons and since we dont have agnostic dungeons.... And even then the zones bugs half the time.
The dungeon finder doesn't lend itself well to open, contested dungeons (aka the ones you do while leveling in classic). They're more ideal for private-instanced dungeons. It's honestly not a hassle to do dungeon groups on TLE. The population will be hopping throughout the level brackets for the first year at least.
Please understand this is not the dungeon finder like you would find in WoW. It simply does not work for the content that is currently in the game. i.e. the dungeons are all open world, there is no instances to teleport your group too (outside of a few small ones that people rarely do). At release there will be THOUSANDS of people leveling up together, you will be able to get into a group within minutes of logging in.
