I suffered burnout there. I had the misfortune of working as an "SRE" at Atlassian. The reality was you spent your days, nights, and weekends dealing with major incidents.
I do not know if it was a conscious strategy, but it would seem the approach taken to reduce organizational wide pager fatigue and burnout from out of hours work was to concentrate it on a few.
(My guess is that it was conscious, as that best explains why my cries for help whilst falling on seemingly sympathetic ears, yielded no changes.)