The worst sort of loneliness is to be socially alone despite being surrounded by people. It isn't the passive loneliness of physical solitude. That is bearable because it has an excuse. But to be alone while not alone, that is oppressive, taunting, a whole room, crowd, world, mocking you just by their presence.
Adam is yet another story. Don't let him become a statistic.
This is the world you've made, Blizzard, with your dungeon finder. We are all as alone as if we were playing with NPCs, and yet we are not, so the world mocks us and our minds know it.
No more, I say! Or maybe more if it is convenient, but not to such an extreme as the current situation. I'd not want to change instances back to 90% finding a group, 9% finding someone with the UBRS key, and 1% actually running the instance. Incidentally, it was still completely worth it. UBRS is badass.
Add a one second delay.
Before a group is tossed into the instance, wait one second. Check the stew again for players from the same servers. Try to get two together. Three, four, maybe even at a peak time the entire group could be from the same server, and all it takes is one second. That's insignificant. We wait longer than that for DPS to remember how to press the ready button.
Or go a step further and add an option to only queue for one's own server. That player will have a longer wait time, but still shorter than the old days of manual queuing. It gives players a tradeoff of time and potentially higher social interaction. Maybe it wouldn't be used much, but for those players who are no longer alone, it would be worth it.