Bulk Edit Calendar Events (either the original version or the current version) has been featured in a few prominent websites:
Lifehacker: https://lifehacker.com/edit-all-your-calendar-events-at-once-with-this-google-1680675958
Kutac, a Czech blog: http://www.kutac.cz/blog/pocitace-a-internety/hromadna-uprava-udalosti-v-google-kalendari/
Cedarville University News: https://www.cedarville.edu/News/2015/Student-Creates-Google-Calender-Lifehack.aspx
Bulk Edit Calendar Events 