If Kindred takes windspeakers,

Based on the text of windspeaker's blessing, it should in theory heal everything inside (including enemies, monsters, and minions) for 10% more but only give allied champions the bonus mr/armor.

"Your heals and shields are 10% stronger. Additionally, heals and shields on allies increase your target's armor by 5 - 22 (based on level) and magic resistance by 2.5 - 11 (based on level) for 3 seconds."

Kindred's ult: "All units within the zone are healed immediately after the blessing ends." (HEAL: 200 / 250 / 300)

How did this never get any attention, this is a good question. I'm also wondering if the +10% to heals from windspeaker will increase her passive on hit healing