Nibelung and starfall

Does anybody know if http://wotlk.cavernoftime.com/item=49992 is supposed to proc valkyrs from http://wotlk.cavernoftime.com/spell=53190 splash dmg?
http://wotlk.cavernoftime.com/spell=53190 generates a total of 20 stars and each of them should have a 2% chance to spawn a valkyr.
The splash dmg of the star however hits everything in a 5 yard range.
Assuming 10 opponents are stacked to each other that would be a 22% chance to spawn a valkyr with each star and its splash dmg, making starfall alone spawn around 4-5 Valkyrs.

According to wowhead comments;

I love my Nibelung.

Les Nibelung proc's off "spell casts".

The initial summon of Treants.
MF and IS applications.
Individual Hurricane ticks (each 'volley' is treated as a individual spell cast by the game mechanics)
Each 'big star' in Starfall counts as a separate spell within the system itself.
SF when it lands.
Wrath when it lands.

It will not proc off:

Reign purges
MF glyph
Trinket procs (such as cultivated power from Spyglass)
MotW casts.

So yeah,it should procc of stars damage as its direct damage and counts totally separatly for system to proc Val'Kyr.

I know that the star itself is supposed to proc a valkyr but I'm talking about the splash dmg of the star that affects all targets in a 5 yard range.
The wowhead comment doesn't mention if starfalls splash dmg is supposed to spawn valkyrs