Indirect nerfs from total speed nerfs (since familiar uses cast speed for its basic attacks which are actually spells) and also indirect flat damage nerfs on various sources (both items and devotions).
Survivability is fine for all pets right now. Pets in general are doing better than they do on live, the nerfs are compared to how they used to perform in the previous Public Test patch.
Will test the changes on this one soonTM and report back - Changelog Monitor • June 5 • 17th update - #19 by tqFan
So far, the changelogs are looking pretty good 