I took an odd path through that last PT, and didn't get his speech IIRC.
I was trying to get the Helldusk armor early, and save the Tieflings.
The roundabout method to do this is:
Go watch a YouTube video.
Trigger Raphael to appear in camp, etc. But this requires entering the Mountain Pass and other stuff, which closes off some Act I quests, including all the Tieflings left the grove and got slaughtered by the goblins.
But if you save the tieflings the official way, they have their party, and Raphael doesn't appear. One or the other, but not both.
But if you get Karlach, don't kill the paladins, and wander away, she panics you're not getting them. Do not talk to her, instead go into the mountain pass, and the Raphael thing will start, get the Helldusk armor. But Karlach wants to know if you're ever gonna get your lazy butt back to the Paladins, say sure, let's go, boom, the Act 1 quests are still open.
Go back, kill the goblin leaders, you're golden. Helldusk armor and Tieflings saved.
Anyhoo, I had killed the paladins before even talking to Karlach across the log. Now what? I was way too far along to roll back.
I went and saved the tieflings the hard way and went back to the grove. The tieflings were gone, but apparently saved,
no speech, no party at camp (thank god), and ultimately they had gotten back in trouble at Last Light Inn, right on schedule. The only downside is it delays HDA a bit so you can't leverage it for gobby clobbering.
