Posted on 05-09-2016 09:42 AM
I ran into this issue a couple of weeks ago and came to a similar conclusion. Everyone should check out MacMule's article. This is a solid explanation and resolution to the issue.
https://macmule.com/2016/05/09/icloud-spotlight-login-window-issues-with-jss-9-9-the-security-privacy-profile-payload/#more-2591
Posted on 05-09-2016 10:40 AM
Great find..
Posted on 05-09-2016 02:46 PM
I didn't even realize I was having the spotlight CPU issue until this post, which made me go look, and lo and behold, we're having the same issue. The fix outlined in the article fixed it for me, too.
Posted on 05-10-2016 06:57 AM
This fixed Spotlight for me as well. Also, it was the only way I could reliably enforce the screen lock after sleep or screen saver. Thanks @bentoms for this.