All makes sense to me bea
The only thing about this kind of "dud" you re talking about is that even though it may be hiding 9 traits, they are likely to be traits you already have, so as you already have these traits shown then there's not much point going in to dig them out once again.
Also Bengal Snow now being a retired fur, it's even more useful now as if it shows on a starter then if it shows then the worst that will be hiding on your starter is Oci Tawny.
Another mistake many of us make is to underestimate the usefulness of the more dominant traits when traiting up a kitty with good hiddens you already know are there ; e.g. : i have a Tiger OS showing 6 and hiding 9. the hidden tail is Tiger Curl and the ear is Ody Booboo, and it's showing Curious and Rounded, which are relatively recessive. So now i needed to put the Tiger with different tail and ear pure ( if poss) traits as if i have 2 OS showing Curious/Rounded and i put them together and obtain the same i can't know if the Curl and the Ody Boo is there whereas if Cur/Rounded shows up when paired with a lower tail and ears OS i can be practically sure that Curl and Ody Boo are there ; I rummaged through my boxes and found i had nothing lower with 9 that would do really so off i went to try find the right partner with Myst/Curious pure if poss, ended up with Stubby and Myst as i could'nt find lower in a hurry. Lesson ; wish i'd hung onto some of those more dom traited boxes now.
Lol i hope this makes sense too