This is a valid 2 man across strategy. The cheese is the thrall de-spawn. No biggie.
Edit: Here is an Abyss and Bridge SOLO TITAN (Post Patch) as well.
http://youtu.be/yCrpbO4zhqE
http://youtu.be/tCziRBoyXQY
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Edited by MultipleTarget: 1/13/2015 6:07:00 AMI did it solo today after the patch :) No cheese