might as well add my 2 cents.

what the heck is wrong with you people crying about a trial group finder.

1. it doesn't exist.
2. if you're worried about the group quality, no one is forcing you to use it

join a guild. make friends. this isn't rocket science

Trial groupfinder would be hilarious. I would NEVER use it for veteran content, but for normal, it could work and I think for the normal Craglorn trials I'd give it a try. Would take some time to kick and replace medium armor dd-tanks who get oneshot by bosses even on normal mode or don't even have a taunt, but after that, groups should be okay for the normal Craglorn trials.

I have my doubts about any other trial tho. nHoF is pure masochism with zone pugs (healers without purge - "oh, I don't have that skill unlocked. It's a PVP skill, I don't PVP." Have fun dieing to poison on first boss. And no, the Templar purifying synergy is nowhere near enough for that boss, synergy cooldown is way too long.), same with nCR+3 and nAS+2.
The average zone group has very, very low damage, so you can't just "kill stuff before incoming damage gets too high". (I joined a 9DD-group in nAA a few days ago, group damage was 105k at Varlariel. That's ~11.6k per DD, and that was with decent buff uptimes...)

Veteran trials are a whole different story and I would never, ever use a group finder for them. I am raiding in good guild core groups though, so I have the skins and titles and don't need to get them with random people. I understand people want those without the hassle of joining a raid guild, with all the hate flowing around towards endgame players nowadays. So I understand where this demand is coming from, I just don't see that it could be successful.