They haven't released The Snowmen yet, as it was rumored it would be included with the 7.2 set.
Now I see it as a separate release coming out on the same day as 7.2.
Now, why the f$%k would they wait till May 28 with The Snowmen if it's separate?
As best I can tell (and this is from paperwork that's crossed my desk on these products in the past two or three months), pulling The Snowmen
from the 7.2 set was a very late decision. As of a month ago, it was supposed to be in the set.
I don't know the reasons, unfortunately. I just know there was a change of plans.