Good question here…
In addition to your possible reasons, another possible reason is that the income may have risen to above the 139 poverty level of families previously on Medicaid thereby requiring a move into a Market Place plan with subsidies that would not take effect until the first quarter of this (2015) year. That’s only speculation on my part.
Locking hard statistics in a fluid and dynamic program like this is like catching mercury in moving boxcar.
BTW … Nice cat.
~OGD~