A: True AoE heals (e.g. Healing Rain) will heal pets and guardians, but will not count those units towards the AoE cap. We’d prefer for “smart” heals to prioritize players over non-players whenever possible, and we’ll continue to improve the logic on such heals until that is the case – it certainly doesn’t feel particularly satisfying to see that you’ve just delivered a critical heal to a Bloodworm.
Chain Heal is inherently a situational spell – that situation euwowgold tends to arise more often the more players are present, but we don’t have any plans to redesign the spell to make it the go-to heal when there are fewer players present, or they are all spread far apart. We’d rather augment other tools, or add new ones, if it appears that Shaman healing is inadequate for particular situations.