I'm not sure about some of the changes. You said you didn't change much but most of the
HQ's are more expensive.
Sisters are more expensive (14 vs 11) and
VSS get less options for wargear.
Immos can squadron, but I'm not sure if that's a good thing.
Penitent Eng aren't Open any more and Orbitals don't autoscatter.
Other than that, it is dreadfully the same.
So either it is not enough change or too much, depending on the point of view.