Yes, there were many changes made to the Drain Life & Soul Feast skills used in this build. Check the 0.7.8 patch notes in the ‘Skills Balance’ section to see all the changes.
Also, you can listen to Boardman and Lizard discuss all the skills of the Acolyte in this video. If you focus specifically on the Drain Life & Soul Feast sections of the video you can distinctly hear Lizard’s spirit being crushed, as they bring up fond memories of this build.