[Findegil]

Maybe we removed then more then necessary. As I already argued above we have evidence from Sil77 that the interest of Morgoth in Lúthien still existed:

But Lúthien heard his answering voice, and she sang then a song of greater power. The wolves howled, and the isle trembled. Sauron stood in the high tower, wrapped in his black thought; but he smiled hearing her voice, for he knew that it was the daughter of Melian. The fame of the beauty of Lúthien and the wonder of her song had long gone forth from Doriath; and he thought to make her captive and hand her over to the power of Morgoth, for his reward would be great.

With this in mind probably we should make it thus:

1. Sauron mentions the skirmish on the border of Doriath, which leads him to mention Luthien.
2. (It is implied that) Beren reacts visibly.
3. Sauron father elaborates which interests Morgoth would have in Lúthien to see Beren's reaction.
4. Beren reacts grim.
3. Sauron asks why he should react thus to the thought of Luthien as Morgoth's captive. And goes even on teasing them farther.

Leading to:

'Boldog, I heard, was lately slain
warring on the borders of that domain
where Robber Thingol and outlaw folk
cringe and crawl beneath elm and oak {2130}
in drear Doriath. Heard ye not then
of that pretty fay, of Lúthien?
Her body is fair, very white and fair.
Morgoth would possess her in his lair.
BL-SL-05 {Boldog he sent, but Boldog was slain: {2135}
strange ye were not in Boldog's train.}
Fierce is your chief, his frown is grim.
Little Lúthien! What troubles him?
Why laughs he not to think of his lord
crushing a maiden in his hoard, {2140}
that foul should be what once was clean,
that dark should be where light has been?

For us who have learned all that story of Boldog and his mission to catch Lúthien by heart, the hint is great enough that we build the connection, but is that true for a reader that does not have our background knowledge from HoM-E?

Respectfully
Findegil