It seems to me Hersheys may be getting an
undeserved bad rap here.
Kraft is the corporation that has had the 5 yr fight for hostile takeover of Cadbury,
and just recently (1/15) succeeded in a buyout for $19+ billion.
Many years (1980's ?) earlier, Hershey had purchased the U.S. marketing rights from Cadbury.
The Kraft deal did not change the Hershey situation.
Now (Jan 2015) it is Kraft that has announced the changes in sourcing
and ingredients (powedered milk) of the chocolate for the Cadbury easter egg
AND the reduction in the number of eggs/package from 6 to 5.
At least that's the way I understand the situation here
in the US from
this article and other I have read.